Felim, William, and Tony Sitinjak. “The Impact of Marketing Mix on the Decision-Making Process to Purchase PT MGD Transportation Services in Indonesia”. Jurnal Ekonomi Perusahaan 30, no. 2 (March 8, 2024): 19–34. Accessed October 25, 2025. https://jurnal.kwikkiangie.ac.id/index.php/JEP/article/view/1101.