Boholst, J. ., J. M. . Calinaya, A. M. . Garcia, and M. . Mamaril. “Level of Effectiveness of Rewards Card at Red Ribbon Bagong Silang Caloocan City: Basis for Customer Retention: Vol.4, No.1”. Ascendens Asia Singapore – Bestlink College of the Philippines Journal of Multidisciplinary Research, vol. 4, no. 1, June 2024, https://ojs.aaresearchindex.com/index.php/aasgbcpjmra/article/view/13616.