Tirador, A. ., J. . Bruzo, A. . Echon, D. . Laylay, and C. L. . Villablanca. “Hotel Facilities Management System”. Ascendens Asia Singapore – Bestlink College of the Philippines Journal of Multidisciplinary Research, vol. 2, no. 1, Apr. 2020, https://ojs.aaresearchindex.com/index.php/aasgbcpjmra/article/view/2402.