Nuryansyah BA, Raihanullah, Rasyid O. Customer Segmentation Analysis and Churn Prediction in E-commerce Using K-Means Clustering and Random Forest: A Case Study of the Brazilian E-commerce Platform Olist. J.I.S.B.T. 2026;2(3):795-801. Accessed June 17, 2026. https://journal.jci.co.id/jisbt/article/view/525