Saputra, Jeri, Dudi Amarullah, and Nikita Astria. “Examining the Influence of the Marketing Mix (4PS) on Manufacturers’ Purchase Decisions of Imported Tobacco: A Case Study of PT Harum Tembakau Indonesia”. Indonesian Interdisciplinary Journal of Sharia Economics (IIJSE) 8, no. 3 (August 25, 2025): 10021-10038. Accessed May 19, 2026. https://e-journal.uac.ac.id/index.php/iijse/article/view/7175.