Ranja, F., Ginting, A. H., Putra, I. S., & Bukit, R. (2026). Customer Segmentation of E-Wallet Top-Up Users Based on RFM and K-Means Clustering. Jurnal Komputer Teknologi Informasi Sistem Komputer (JUKTISI), 4(3), 2376–2382. https://doi.org/10.62712/juktisi.v4i3.887