Marwati, Devi, and Dian Purnama Sari. “The Influence of Service Quality on Customer Satisfaction at Kopi Sadis Medan Cafe”. Jurnal Ekonomi 13, no. 01 (March 5, 2024): 1936–1943. Accessed May 7, 2026. https://www.ejournal.seaninstitute.or.id/index.php/Ekonomi/article/view/4130.