Siahaan, Leonardo, Rizka Muliani, Nova Romadiyah Padang, and Putri Kemala Dewi Lubis. “The Business Feasibility Study Analysis of a Coffee Shop at the Tempat Biasa Coffee, Jalan Gurilla No. 102 Medan”. Economic: Journal Economic and Business 2, no. 1 (January 31, 2023): 20–25. Accessed July 6, 2025. https://jurnal.larisma.or.id/index.php/EJEB/article/view/562.