R. B. Macapinlac, “Preventive Maintenance Implementation and Operational Resiliency of K2MAC Delivery Services”, IJRIS, vol. 3, no. 5, pp. 55–66, May 2025, Accessed: Mar. 16, 2026. [Online]. Available: https://www.journal.ijris.com/index.php/ijris/article/view/129