Delita Sihotang, Safriadi Pohan, Hadijah Sipahutar, Anna Basriyani, Kurnia Arifah Pasaribu. E-Commerce. YPAD [Internet]. 2025 May 30 [cited 2026 Jan. 24];2(1). Available from: https://journal.yayasanpad.org/index.php/ypadbook/article/view/384