Khongmark S, Tansui D. Customer Segmentation using WRFM-Based Feature Representation with K-Means and PCA. JMARD [internet]. 2026 Jun. 26 [cited 2026 Aug. 28];8(2):41-7. available from: https://he02.tci-thaijo.org/index.php/JMARD/article/view/278038