Vichev, Sergey. “Application of K-Means Clustering Algorithm With RFM for Customer Segmentation in Logistics Sector”. Vanguard Scientific Instruments in Management 19 (December 20, 2023): 199 - 211. Accessed October 8, 2024. https://vsim-journal.info/index.php?journal=vsim&page=article&op=view&path[]=517.