Wijaya, Hussin Agung, Wildan Suharso, and Yufis Azhar. “Penerapan Frequency, Recency, Monetery Model Dan Algoritma K-Mena Pada Sistem Pengelompokan Pelanggan (Studi Kasus: PT. Ditra Manunggal Jaya)”. Jurnal Repositor 2, no. 11 (January 16, 2024). Accessed November 22, 2024. https://ejournal.umm.ac.id/index.php/repositor/article/view/30968.