Merdekawati, Intan. “The Influence of Service Quality and Customer Satisfaction on Customer Loyalty Pos Kupi Langsa”. Journal of Social Science Utilizing Technology 1, no. 1 (November 1, 2023): 1–10. Accessed July 5, 2025. https://www.journal.ypidathu.or.id/index.php/jssut/article/view/585.