Airennn, Muhamad Yumni, et al. “Segmentasi Pelanggan Dan Prediksi Churn E-Commerce Menggunakan K-Means Clustering Dan Random Forest: Studi Kasus Olist Brazil”. Journal of Information Systems and Business Technology, vol. 2, no. 3, June 2026, pp. 918-26, https://journal.jci.co.id/jisbt/article/view/542.