Utami, Hestin Septiana Wahyu, and Boy Suzanto. “The Influence of Product Quality and Promotion on Purchasing Decisions at a Used Car Company”. Jurnal Computech & Bisnis (e-journal) 18, no. 1 (July 11, 2024): 69–76. Accessed April 3, 2025. https://jurnal.stmik-mi.ac.id/index.php/jcb/article/view/295.