Pantila, Jiro, Jonathan Allen Vicenio, Prince Nonatus Padua, Bon Jovi Salvatierra, Patrick Fidel, and Erwin Concepcion. 2020. “Hotel Billing Management System”. Ascendens Asia Singapore – Bestlink College of the Philippines Journal of Multidisciplinary Research 2 (1). https://ojs.aaresearchindex.com/index.php/aasgbcpjmra/article/view/2423.