Espano, N. ., B. . Trinidad, G. . Tatad, J. . Ballesteros, A. . Bisalo, and C. J. . Espeña. “Proposed Library Borrowing and Returning System for Kalayaan National High School”. 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/2391.