AGUSTY, R. M.; WIDAGDO, H. The Influence of Product Quality and Promotion on Purchasing Decisions of Janji Jiwa Palembang Coffee. Jurnal Multidisiplin Sahombu, [S. l.], v. 5, n. 03, p. 299–305, 2025. Disponível em: https://ejournal.seaninstitute.or.id/index.php/JMS/article/view/6402. Acesso em: 12 jun. 2026.