CLUSTERING OF E-WALLET USAGE BASED ON TRANSACTION PATTERNS USING K-MEANS. pilar [Internet]. 2026 Mar. 27 [cited 2026 Apr. 2];22(1):30-6. Available from: https://ejournal.nusamandiri.ac.id/https:/ejournal.nusamandiri.ac.id/index.php/pilar/article/view/8292