M. B. Samudra, “Segmentasi Pelanggan Kartu Halo Telkomsel Berbasis K-Means di Wilayah Sumbagsel: K-Means-Based Customer Segmentation of Telkomsel Kartu Halo in the Sumbagsel ”, MALCOM, vol. 6, no. 2, pp. 674-683, Apr. 2026.