Tammam, Bimmo Fathin, Ali Ibrahim, Dwi Rosa Indah, Ahmad Fali Oklilas, and Yadi Utama. “Taxpayer Classification Using K-Means Clustering to Support CRM Strategy Development: Case Study of Prabumulih City Samsat”. Journal of Information Systems and Informatics 7, no. 4 (December 10, 2025): 3454–3482. Accessed March 7, 2026. https://journal-isi.org/index.php/isi/article/view/1365.