Asri, Muhammad Raffy, and Leni Cahyani. “The Influence of Product Quality on Customer Loyalty at Groei Coffee Bandung in 2026”. Eduvest - Journal of Universal Studies 6, no. 4 (April 27, 2026): 4793–4809. Accessed April 28, 2026. https://eduvest.greenvest.co.id/index.php/edv/article/view/53052.