Valenzuela, M. ., R. . Segador, R. . Oxina, M. . Villanueva, J. . Cabahug, and E. R. . Adduru, MBA. “An Office Procedure Study in Human Resource Department and Billing and Collection Section in XYZ Company”. 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/1867.