An Implementation of Loyalty Program Theory Based on Recency Frequency Monetary Score in Information Systems to Increase Customer Loyalty. J. Inf. Syst. Explor. Res. [Internet]. 31 januari 2025 [geciteerd 25 augustus 2026];3(1):45-52. Beschikbaar op: https://shmpublisher.com/index.php/joiser/article/view/538