1.
Hamdan H, Ali H. The Effect of Loyalty Points, Tiered Membership, Gamification, and Free Shipping on Customer Retention: A Study of Loyalty Programs in Online Shopping Applications. GECR [Internet]. 2025 Sep. 1 [cited 2026 Mar. 3];1(2):53-60. Available from: https://greenationpublisher.org/GECR/article/view/605