Sutisna, Dian, Soelaiman Sukmalana, Rd Okky Satria, and R. Arby. “The Effect of Product Quality and Promotion on Purchasing Decisions: Study at A Company Engaged in The Field of Weapons Systems and Commercial Products”. Jurnal Ekonomi, Bisnis & Entrepreneurship 17, no. 2 (November 30, 2023): 296–307. Accessed April 23, 2024. https://jurnal.stiepas.ac.id/index.php/jebe/article/view/436.