Rizki Utami, A., and B. . Arifin Noer. “Proposed Marketing Strategy for the Sustainability of Biomass Producer Companies (PT XYZ Case Study)”. Jurnal Indonesia Sosial Teknologi, vol. 5, no. 12, Jan. 2025, https://jist.publikasiindonesia.id/index.php/jist/article/view/8858.