Cueva, R. S. ., N. L. . Remegio, E. M. . Rivera, J. C. . Sarcilla, M. S. . Victoria, and D. A. S. . Ablen. “The Effects of Extra-Curricular Activitiesin the Academic Performance of Grade 12 Students”. 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/1086.