F. Irawan, F. Amaluddin, and A. Wijayanti, “E-Commerce Customer Segmentation Based on RFM Analysis Using DBSCAN Algorithm to Improve Marketing Strategy”, J. EMT KITA, vol. 9, no. 4, pp. 1850–1859, Oct. 2025, doi: 10.35870/emt.v9i4.5375.