[1]
F. Ranja, A. H. Ginting, I. S. Putra, and R. Bukit, “Customer Segmentation of E-Wallet Top-Up Users Based on RFM and K-Means Clustering”, J. Komput. Teknol. Inf. Sist. Komput., vol. 4, no. 3, pp. 2376–2382, Feb. 2026.