Najmus Tsaqib, Iskandarini I, Beby Karina Fawzeea Sembiring. Analysis of the Effect of Product Quality and Service Quality on Customer Loyalty Mediated by Customer Satisfaction at Kafe Kudu, Jalan Sei Petani, Medan City . Ijemr [Internet]. 2026 Jan. 14 [cited 2026 Mar. 7];5(1):172-9. Available from: https://ijemr.asia/index.php/ijemr/article/view/622