Santika, Putri Dewi, and Handry Sudiartha Athar. “The Effect of Digital Promotion, Online Advertising, and Customer Service Quality on the Decrease in Tokopedia Purchases Amid Competitive E-Commerce Competition in Mataram City”. Indonesian Interdisciplinary Journal of Sharia Economics (IIJSE) 9, no. 2 (August 4, 2026): 17264-17273. Accessed August 25, 2026. https://e-journal.uac.ac.id/index.php/iijse/article/view/10635.