p–ISSN: 2723 - 6609 e-ISSN: 2745-5254
Vol. 5, No. 1 January 2024 http://jist.publikasiindonesia.id/

Doi: 10.59141/jist.v5i01.751 185

THE INFLUENCE OF BRAND TRUST AND ADVERTISING ON
PURCHASING DECISIONS AND REPURCHASE INTENTIONS


Kintan Kinari1*, Dwi Laras Karimah2, Berliana Indah Pramesti3, Agatha Citra

V.D4, Ricardo Indra5

Universitas Bina Nusantara Jakarta, Indonesia
Email : [email protected]*, [email protected],
[email protected], [email protected],

[email protected]


*Correspondence

ABSTRACT
Keywords:
Brand Trust,
Advertising, Purchase Decision,
Repurchase Intention,
Consumer Behaviour.

The rapid development of social media, such as Instagram, makes it
easier for business people to market their products online. It is not
uncommon for marketing to be done via the internet, and this marketing
is better known through social media and has even become a trending
product. Marketing communication is done to gain the public's trust
through advertising or other programs. One of the marketing
communication strategies carried out by companies using the internet is
advertising. This advertising is carried out to obtain a specific goal, such
as purchasing decisions and repurchase intentions. Objective: To
determine the influence of brand trust and advertising on purchasing
decisions and repurchase intentions. Research design, data, and
methodology: Distributing online questionnaires via the Google online
platform to 100 audiences who follow Dove's Instagram account. After
all the data is collected, it is processed using Structural Equation
Modeling Partial Least Squares. Results and Discussion: The research
found that brand trust and advertising influence purchasing decisions and
repurchase intentions.





Introduction

Nowadays, women and men are becoming more aware of the need to maintain good
skin and facial health because they are the most visible aspects of the body and necessitate
regular care. Skincare and body care are two things that men and women frequently look
for because beauty plays a significant role in a person's self-confidence in body care and
skin care, depending on the type of beauty items or cosmetics (SITUMORANG, 2022).
Cosmetics are materials used for the exterior care of the human body, such as the
epidermis, hair, nails, lips, teeth, and oral mucous membranes, in order to clean, perfume,
modify the appearance, or enhance body odor, or protect and maintain the body in good
shape.

According to the Central Statistics Agency (BPS), the cosmetics industry, which
comprises the pharmaceutical, chemical, and traditional medicine industries, will grow
by 9.61% by 2021. Furthermore, according to BPOM RI, the cosmetics business has seen
a 20.6% increase in companies. Between July 2021 and July 2022, the number of
cosmetics industries climbed from 819 to 913 from 2021 to July 2022. According to
research from Kompas.co.id, the value of beauty care transactions in the online market at
the beginning of 2021 exceeded IDR 20,000,000,000. The Dove brand manufactures

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Jurnal Indonesia Sosial Teknologi, Vol. 5, No. 1, January 2024 186

personal care products Indonesians use, such as shampoo, conditioner, soap, deodorant,
hair vitamins, and others. Dove has been present in Indonesia since 1993, offering solid
bath soap products. Dove bath soap is touted as a bath soap that is popular among many
young ladies because it makes skin smoother, whiter, and more luminous.
A. Brand Trust

According to (Juniawan, 2020), brand trust is the average consumer's willingness
to rely on a brand's capacity to carry out all its uses and functions. Trust is defined as a
guarantee of a brand's integrity and exchange reliability. Trust describes a consumer's
dedication and satisfaction with a brand's advertising. Often, marketers use brand trust as
a perceived risk reduction strategy. Trust gives consumers confidence to take risks and
can also be measured as the brand's goodwill in mind.

Experience with a brand influences brand trust more broadly. Trust is a belief, so
there is a possibility that it will bring positive results, but at the same time, negative results
cannot be denied. Trust is an emotional situation that includes the goal of discerning
vulnerability based on a positive view of another person's intentions or behavior
(Arikhman, 2021). According to (Sandur, 2023), brand trust leads to brand loyalty
because trust creates highly valued exchange relationships. To gain customer loyalty, one
must first gain their trust, according to. Positive connections between parties involved in
transactional relationships will lead to the development of brand trust. To maintain
positive interactions over the long term, brand trust is essential. As a result, businesses
must increase customer trust by matching the benefits of their products with the
information consumers provide about those products. According to (Sinaga, Putri,
Banjarnahor, Halim, and Sudirman, 2020), there are two dimensions of brand trust:
Trusting Belief and Trusting Intentio.
B. Advertising

Advertising is any paid form of non-personal communication by an identified
sponsor of ideas, goods, or services. This includes traditional mass media outlets such as
television, magazines, newspapers, outside the home (billboards), and others. The
advertiser is an identified sponsor and not a person because this form of sponsorship
communicates simultaneously with several recipients (perhaps millions) rather than with
a specific person or small group. Meanwhile, according to (Hasanah and Kurniasih,
2016), advertising is a message persuading people to buy. Advertising is a form of
promotion using print and electronic media. Advertising has long been seen as the most
effective form of promotion. Advertisements are the most persuasive sales messages
directed at the most potential buyers of certain goods or services at the lowest possible
cost. As discussed in the previous chapter, advertising has developed into a marketing
strategy to promote products and services.

According to (Pardamean, 2016) in their book The Language of Advertising,
advertising is not just direct text. On the other hand, the advertising concept is more
complicated because it requires the audience to try harder to decode the message and
understand the many relationships conveyed. Advertising is an essential instrument for
marketing and a force in communication. Mass communication, such as advertising,

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Jurnal Indonesia Sosial Teknologi, Vol. 5, No. 1, January 2024 187

educates, persuades, or encourages consumers to purchase goods or services. The
function of advertising in the marketing industry is to convey persuasive messages to
current and potential clients. To understand the marketing strategies used to sell goods, it
is essential to understand the target market of an advertisement. According to (Poetra and
Christantyawati, 2017), effective advertising must fulfill five goals: it must attract
people's attention, arouse their interest, arouse desire, foster confidence, and prompt
action. The interrelationship of these five functions supports the selling power of the
marketed products.

Several previous studies were used as guidelines for writing to complement this
research. Each of these journals has advantages and disadvantages. The shortcomings in
this case are complemented and become advantages of this research. The first previous
research used as a guide was conducted (Gunardja, 2020) and was titled "The Influence
of Trust on the Decision to Buy Tiff Body Products." This research uses quantitative
methods with non-probability sampling techniques. The results of this research state that
Trust has a positive and significant effect on purchasing decisions because trust is an
essential factor that can influence consumers to buy a product, primarily online, where
the product cannot be found directly, so trust is vital for consumers to decide whether to
buy a product. Or not. The second research was conducted by (Kliangsa-Art and
Meathawiroon, 2023), titled "Influence of Brand Communication on Brand Image, Brand
Reputation, Brand Trust and Repurchase Intention in Food Delivery Platform." The
results of this research say that brand reputation and trust directly influence consumers'
repurchase intentions positively because, with trust, consumers will use food delivery
platform services repeatedly and have the intention to repurchase.

This means that the better the consumer's attitude towards Samsung smartphone
advertisements advertised using applications such as Instagram, the stronger their desire
to repurchase Samsung smartphone products. The fourth research is "The Impact of
Exposure to Online Advertisement on Purchase Decision Empirical Study of Saudi
Customers in Western Region" conducted by (Ahmed, 2017). This research states that
consumers in Saudi Arabia are actively influenced by online advertising as a tool for
validating purchasing decisions. The last research that is used as a guide is research
conducted by (Pasaribu, Suyono, & Elisabeth, 2019) entitled The Impact of Lifestyle,
Brand Awareness, Product Quality, on Purchasing Decisions And Repurchase Intention
Products for East Java & Co. This research concludes that there is a positive and
significant influence between the Purchase Decision variable on Repurchase Intentions.
Based on the data processing results, it can be concluded that the purchase decision is a
consideration that can encourage consumers to repurchase the product.

Companies use marketing communication strategies to achieve goals, such as
brand trust through advertising. The final result of these efforts is to get consumer
feedback in the form of product purchasing decisions, up to repurchase intentions, making
the author interested in researching the influence of each variable. This uses one of
Unilever's brands, namely Dove. This research will be based on several previous studies
with advantages and disadvantages, where the shortcomings in previous research will be

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refined using definite theories and based on data obtained in the field. Based on the
explanation above, this research wants to show the influence of brand trust and
advertising of personal body care products on purchasing decisions and repurchase
intentions.
C. Purchase Decision

Their book Marketing Management (Kotler & Keller, 2016) says that purchasing
decisions are based on how consumers view prices and what they consider to be the
current actual price, not on the price stated by the marketer. Customers may have a lower
price threshold, below which price signals low or unacceptable quality, and a higher price
threshold, above which price becomes prohibitive, and the product appears not worth the
money. Different people interpret prices in different ways. Two general factors can
intervene between purchase intention and purchase decision. As explained, the
purchasing decision is the stage in the buyer's decision-making process where someone
decides whether to buy the product under consideration. It further states that choosing a
brand to buy is part of purchasing.

A consumer's choice of a product or service is an action or choice carried out
according to the consumer's preferences. According to (Armstrong, Adam, Denize, &
Kotler, 2014), purchasing decisions involve several processes that consumers go through
before deciding whether to buy a product. Choosing the products and services they want
to purchase requires consumers to make daily decisions. The brands they choose to
purchase should always reflect their preferences. Two general factors can intervene
between purchase intentions and purchase decisions. The first factor is the attitude of
other people. Our influence on other people's attitudes depends on the intensity of other
people's negative attitudes toward our choices and our motivation to comply with other
people's wishes. The more intense the other person's negativism and the closer he is to us,
the more we adjust our purchasing intentions, and the opposite is also true.
D. Repurchase Intention

Repurchase is the customer's action in purchasing or reusing the product. Once a
customer buys a specific item, they have the potential to repeat the purchase. Customers
repeatedly consume similar services or products from the same seller. While repurchase
is an actual action, repurchase intention indicates a customer's decision to engage in future
activities with the seller (Pham et al., 2018). Meanwhile, according to (Ahmed, 2017),
repurchase intention is the consumer's desire to make purchases in the future based on the
experience they have gained. Consumers' desire to repurchase is usually based on
satisfaction with the product because the product can meet consumer expectations.
Repurchase intention is an individual's assessment of repurchasing a product from the
same company in a situation that has occurred (Hellier et al., 2003).

Repurchase describes the natural action of customers in repurchasing or reusing
the same product (Ibzan et al., 2016). This is very likely to happen because of the potential
for consumers to repurchase the same product (Peyrot & Doren, 1994). Conceptually,
repurchase is an actual action, while repurchase intention indicates a customer's decision
to make future purchases with the same retailer or supplier according to research (Hume

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Jurnal Indonesia Sosial Teknologi, Vol. 5, No. 1, January 2024 189

et al., 2007) and research from (Zhang et al., 2011). In their research, Repurchase
Intention Indicators (Ahmed, 2017) explain that repurchase intention is measured using
the following indicators: repurchasing the product in the future, reluctance to switch to
another brand, and Reducing information search before repurchasing.


Research Methods

The method used in this research is a survey. According to (Creswell, 2015), a
survey is a data collection procedure in quantitative research to obtain and describe a
population's attitudes, behavior, and characteristics. In this research, the sampling
technique was based on the population, using non-probability sampling with a purposive
sampling method. The purposive sampling technique includes people selected based on
specific criteria created by the researcher based on the research objectives. The type of
research approach used in this research is a quantitative research method. This research
will use a positivist paradigm to determine the influence of brand trust and advertising
purchasing decisions and intentions. The data collection technique in this research will be
respondents to surveys online. Eql=

��
+ ����

= pondents :
n = Number of Samples
N = Number of Population
e = Precision value (the accuracy desired by the researcher); in this study, a precision
value of 0.5 was used

This research used The data analysis of Structural Equation Modeling - Partial Least
Square (SEM PLS). Structural Equation Modeling (SEM) is a statistical technique that
analyses relationship patterns between latent constructs and their indicators, one latent
construct with another, and direct measurement error. SEM allows the analysis of several
dependent variables and independent variables directly (Santoso & Sispradana, 2021).
SEM data analysis techniques are used to thoroughly explain the relationships between
variables in the research. SEM data analysis techniques are used to explain the
relationships between variables in the research thoroughly. The underlying reasons for
using SEM are:
1. SEM can estimate relationships between variables that are multiple relationships. This

relationship is formed in a structural model (the relationship between dependent and
independent constructs).

2. SEM can describe the relationship pattern between latent constructs and manifest
variables or indicator variables.

Results and Discussion
The details of the analysis were as follows: First, for the analysis of the

characteristics of the samples; second, to confirm the reliability of the questions; and
third, to examine the effect of brand trust and advertising on purchase decision and
repurchase intention. To achieve this goal, we adopt the theory shown in Figure 1 with
the five hypotheses that will be obtained using a questionnaire.

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Figure 1 Research Model


Hypothesis Development
Brand Trust and Purchase Decision

Research conducted by (Yohana Nadya, 2020) in the Lugas Journal of
Communication states that trust has a positive and significant effect on purchasing
decisions because trust is an essential factor that can influence consumers to buy a
product, primarily online, where the product cannot be found directly, so Trust is vital for
consumers to decide whether to buy a product or not. The hypothesis of this research is:
H1: Brand Trust has a significant influence on Purchasing Decisions.
Advertising and Purchase Decision

Further research conducted by (Abdullah et al., 2017) states that consumers in
Saudi Arabia are actively influenced by online advertising as a tool to validate purchasing
decisions. So, the hypothesis of this research is:
H2: Advertising has a significant effect on purchasing decisions.
Brand Trust and Repurchase Intention

Research conducted by (Sinurat & Dirgantara, 2021) states that brand reputation
and trust directly influence consumers' repurchase intentions positively because, with
trust, consumers will use food delivery platforms services repeatedly and intend to
purchase return. So, the hypothesis of this research is:
H3: Brand Trust has a significant effect on Repurchase Intention.
Advertising and Repurchase Intention

Advertising has a positive and significant impact on repurchase intention. This
means that the better the consumer's attitude towards Samsung smartphone
advertisements advertised with applications such as Instagram, the stronger their desire
to repurchase Samsung smartphone products (I Gusti Agung Putu, Ni Wayan Sri, 2020).
So, the hypothesis of this research is:
H4: Advertising has a significant effect on Repurchase Intention.
Purchase Decision and Repurchase Intention

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There is a positive and significant influence between the Purchase Decision
variable and Repurchase Intentions. Based on the results of data processing, it can be
concluded that the Purchase Decision is a consideration that can encourage consumers to
buy the product again (Pasaribu et al., 2019). So, the hypothesis of this research is:
H5: Purchase decisions have a significant effect on Repurchase Intention.
Measurement Reliability
Convergent Validity Test
In this study, convergent validity test comparing the t-count value with the t-table
value, degree of freedom (df) = n-2, if the r-count is greater than the t-table, then the
question is declared valid if the t-count is smaller than the r-table. The question is said to
be invalid (Ghozali, 2016). If the calculated r is greater than the table r and the t value is
positive, then the item or question is said to be valid (Sugiyono, 2013). The basis for
decision-making in the validity test to determine whether a question item is valid
(Ghozali, 2016) is as follows: If r count > r table, then the question item is declared valid.
If r count < r table, the question item is declared invalid. As a result, the loading factor
limit of 0.6 is used in this investigation. Items with a loading factor value less than 0.6
will be eliminated from the analysis. If the AVE value is 0.5, convergence validity has
been met. The model was examined in SmartPLS software, as shown in Figure 2.


Figure 2 : SmartPLS Model







Table 1
Convergent Validity Test Results X1 & X2

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Construct Score Result
Brand Trust X1.1 0,838 Valid
Brand Trust X1.2 0,836 Valid
Brand Trust X1.3 0,838 Valid
Advertising X2.1 0,743 Valid
Advertising X2.2 0,807 Valid
Advertising X2.3 0,781 Valid
Advertising X2.4 0,687 Valid
Advertising X2.5 0,744 Valid


Based on the table above, it can be seen that each statement item on variables X1

and X2 in the questionnaire is declared valid because it shows an r count result that is
greater than the r value in the table so that it can be used as a research measuring tool.
With the validity of all statement items, the brand trust and advertising variables can be
measured accurately.

Table 2
Convergent Validity Test Results Y & Z

Construct Score Result
Purchase Decision Y.1 0,718 Valid
Purchase Decision Y.2 0,832 Valid
Purchase Decision Y.3 0,795 Valid

Repurchase Intention Z.1 0,780 Valid
Repurchase Intention Z.2 0,849 Valid
Repurchase Intention Z.3 0,795 Valid


Based on the table above, it can be seen that each statement item on variable Y and

variable Z in the questionnaire is declared valid because it shows a calculated r result that
is greater than the r table value so that it can be used as a research measuring tool. With
the validity of all statement items, the purchase decision and repurchase intention
variables can be measured accurately.
Discriminant Validity Test

The extent to which a notion is distinct from other constructs according to empirical
standards is called discriminant validity. Thus, proving discriminant validity requires that
a concept is distinct from others in the model and captures phenomena not represented by
other constructs (Hair et al., 2016). Smart PLS can provide analysis by examining the
Fornell-Larcker Criterion and cross-loading.

Table 3
Fornell-Larcker Criterion

Construct ADV (X2) BT (X1) PD Y) RP (Z)
Brand Trust (X1) 0,754
Advertising (X2) 0,358 0,820

Purchase Decision (Y) 0,270 0,306 0,811
Repurchase Intention (Z) 0,294 0,268 0,544 0,783


According to Table 3, the Fornell-Larcker value between the same variables is

bigger than between the variables and others. It indicates that the veracity was obvious.

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Construct Reliability Test
Reliability testing in this study used the Cronbach Alpha coefficient with the help
of the PLS program. A variable will be said to be reliable if it provides a Cronbach Alpha
value > 0.6 (Ghozali, 2011). If the reliability value is less than 0.6, the value is good,
which means that the measuring instrument used is unreliable.

Table 4
Reliability Test Result

Construct Cronbach's
Alpha

Composite
Reliability

AVE Result

Brand Trust (X1) 0,757 0,860 0,673 Reliable
Advertising (X2) 0,811 0,868 0,568 Reliable

Purchase Decision (Y) 0,744 0,852 0,657 Reliable
Repurchase Intention (Z) 0,684 0,826 0,613 Reliable


Evaluation of Structural Model

Based on the path coefficient value, correlations between variables close to +1 reflect
statistically significant strong positive relationships. With a significance threshold of 90%, the
resulting t-statistic value is also greater than the t-table value of 1.29.





Table 5
The Hypothesis of The Structural Model

Construct T-Statistic Significant
Level

Original
Sample

Hypothesis

Brand Trust (X1) -
Purchase Decision (Z)

2,055 1,29 0,240

Positive,
Significant

Impact

Advertising (X2) -
Purchase Decision (Z)

1,513 1,29 0,185

Positive,
Significant

Impact

Brand Trust (X1) -
Repurchase Intention

(Y)
0,747 1,29 0,069

Positive,
Not

Significant
Impact


Advertising (X1) -
Repurchase Intention

(Y)
1,518 1,29 0,140

Positive,
Significant

Impact


Purchase Decision (Z)
Repurchase Intention

(Y)

5,616 1,29 0,485

Positive,
Significant

Impact

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Based on the t-count value, the test findings reveal that all hypotheses are accepted or have
a substantial influence. H1 is agreed. Namely, brand trust considerably influences purchase
decisions, with a score of 2.055. Advertising's influence on purchasing decisions is significant,
with a t-count of 1.513, more than 1.29 (t-table). These results indicate that H2 is acceptable. The
test findings also suggest that brand trust has a considerable effect on repurchase intention (t-
count (0.747) is lower than t-table (1.92). These findings suggest that H3 has an insignificant
impact. The results of hypothesis testing are based on a calculated t-value of 1.518, greater than
1.92 (t-table). These findings imply that H4 is recognized, specifically that advertising
considerably affects repurchase intention. The next results show that the purchase decision
influences repurchase intention with a t-count of 5.616, greater than the t-table of 1.29. Therefore,
H5 is accepted.


Conclusion

This research tried to predict the impact of brand trust advertising and Purchase
Decision (as the mediating variable) on Repurchase Intention to see the influencing
factors of engagement on millennial subscribers in Indonesia. Based on the hypothesis
testing results, it can be concluded that 4 of the five proposed hypotheses were accepted
with the information in Table 5. The research results indicate four constructs with a
positive influence on Repurchase Intention and one construct with a negative influence.
The most significant construct influencing Repurchase Intention is Purchase Decision
(Z), with a 5,616 t-score. This result is higher than the t-table score, which is 1.29, with a
significance level of 90%. The indicator Purchase Decision has the most significant
influence on Repurchase Intention, with a score of 0.811 in the outer loading. Brand Trust
significantly impacts Purchase Decisions with a t-score of 2,055, which means that brand
trust and purchase decisions are significantly related. Besides Brand Trust, it was also
found that perceived price negatively contributes to customer engagement, as evidenced
by the t-score of 0.746, which is lower than the significance level of 1.29. Brand Trust
has a positive but not significant effect on repurchase intentions. This means that brand
trust will influence consumers to show repurchase intentions for a product, but the effect
is not significant. If brand trust increases, customers' repurchase intentions will also
increase, but not optimally. Intention to repurchase does not occur because the customer's
brand trust in the product has decreased. After all, they have previously purchased where
the product did not match the customer's desire. This causes their trust in the brand to
decrease, so their intention to repurchase is not realized.
On the other hand, advertising also positively affects purchase decisions and
repurchase intention. This result was proven by the t-score of 1.513 on purchase decision
and 1.518 on repurchase intention. As a powerful digital tool, advertising positively
affects repurchase intention because the main aim of advertising is to create a feeling of
liking in consumers towards the product so that it indirectly makes consumers feel that
they need the product. So, they will directly make purchasing decisions or even intend to
repurchase the product with the highest loading value, 0.820. The way an advertisement
is presented to consumers will attract their attention so that it can change consumer
behavior. By appealing emotionally and rationally, an advertisement can encourage

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people's desire to make purchases or re-purchases, where one of the purposes of an
advertisement is to remind and stimulate repeat purchases. The way advertising is
presented to consumers also influences its appeal to consumers and grabs their attention,
thereby changing consumer behavior.




























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Jurnal Indonesia Sosial Teknologi, Vol. 5, No. 1, January 2024 196

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