T. Bhattarai, “Customer Retention in E-Payments: Identifying the Key Determinants”, Int. Res. J. Parroha, vol. 4, no. 1, pp. 39–48, Nov. 2025, Accessed: Jul. 19, 2026. [Online]. Available: https://nepjol.info/index.php/irjp/article/view/86602