Lubis, Imam Sofyan, Riyan Ardiansah, Syukur Jaya, and Kasmad Kasmad. “Pengaruh Kualitas Pelayanan Terhadap Keputusan Pembelian Krispy Kreme Di Supermall Ciledug Tangerang”. Jurnal Ekonomi Efektif 4, no. 1 (November 10, 2021): 118–124. Accessed August 1, 2024. https://openjournal.unpam.ac.id/index.php/JEE/article/view/14516.