Arhas SH, Suprianto S, Darwis M, Saleh S, Jamaluddin J, Nasrullah M. Service Quality and Customer Loyalty at Grapari. KSS [Internet]. 2022Mar.15 [cited 2024Jul.2];7(5):734–740. Available from: https://knepublishing.com/index.php/KnE-Social/article/view/10590