Mamusung, Deva Yanti, et al. “Pengaruh Potongan Harga Terhadap Keputusan Pembelian Pada Platform E-Commerce Shopee Di Desa Ratatotok”. Productivity, vol. 3, no. 6, Nov. 2022, pp. 507-13, https://ejournal.unsrat.ac.id/v3/index.php/productivity/article/view/44968.