ORTIGUEZA, M. .; FERNANDEZ, G. .; ULBINAR, M. .; MON, F. .; QUINTAL, A.; SISON, MBA, F. A. . An Office Procedure Study of Human Resource and Billing Department in MNO Company. Ascendens Asia Singapore – Bestlink College of the Philippines Journal of Multidisciplinary Research, [S. l.], v. 1, n. 1, 2019. Disponível em: https://ojs.aaresearchindex.com/index.php/aasgbcpjmra/article/view/1904. Acesso em: 7 may. 2024.