Achmad Chusni Mubarok and Intan Dzikria (2023) “Customer Retention Program Framework in Customer Relationship Management System Design”, Prosiding Seminar Nasional Teknoka, 8, pp. 159–168. Available at: https://journal.uhamka.ac.id/index.php/teknoka/article/view/14558 (Accessed: 22 December 2024).