Rahmadi Idris Pasaribu, Sabda Dian Nurani Siahaan. Analisis Pengaruh Product Quality dan Service Quality Terhadap Loyalitas Konsumen Pada Warkop Rifqi Jaya Tuasan Medan Tembung. JUMBIWIRA [Internet]. 2025 Jul. 14 [cited 2025 Dec. 5];4(2):756-79. Available from: https://jurnal-stiepari.ac.id/index.php/jumbiwira/article/view/2886