Yohanni Syahra and Natasya Nabaceva (2026) “Application of Data Mining to Analyze BPJS Patient Satisfaction Levels Regarding the Service Attitude of PTPN II Tanjung Selamat General Hospital Using the K-Means Clustering Algorithm ”, Hanif Journal of Information Systems , 3(2), pp. 111–117. Available at: https://journal.ilmubersama.com/index.php/hanif/article/view/72 (Accessed: 6 July 2026).