Tammam, Bimmo, Ali Ibrahim, Dwi Indah, Ahmad Oklilas, and Yadi Utama. 2025. “Taxpayer Classification Using K-Means Clustering to Support CRM Strategy Development: Case Study of Prabumulih City Samsat”. Journal of Information Systems and Informatics 7 (4), 3454-82. https://doi.org/10.63158/journalisi.v7i4.1365.