Amrah, Wahidah, and Fitriani Mandung. “Pengaruh Kualitas Produk, Celebrity Endorser Dan Harga Terhadap Keputusan Pembelian Produk Sirclo”. Economics and Digital Business Review 4, no. 2 (October 2, 2023): 235–243. Accessed October 11, 2026. https://ojs.vifada.id/index.php/ecotal/article/view/795.