Cabatingan, J. E. ., M. L. . Dacaymat, K. S. . Delos Reyes, L. C. . Lovete, A. P. . Mullon, and E. B. . Pineda. “Airport Management System: Financials (Budget Management, General Ledger, Accounts Payable / Receivables, Disbursement, Collection)”. Ascendens Asia Singapore – Bestlink College of the Philippines Journal of Multidisciplinary Research, vol. 1, no. 1, Apr. 2019, https://ojs.aaresearchindex.com/index.php/aasgbcpjmra/article/view/2226.