Simanjuntak, E. A., Siagian, P. . and Zulkarnain, Z. (2024) “Energy Efficiency Analysis of the Implementation of On-Grid Solar Power System at Pertamina Labuhan Deli Fuel Depot ”, Jurnal Indonesia Sosial Teknologi, 5(11), pp. 5104–5116. doi: 10.59141/jist.v5i11.8766.