Cueva, Renerio S., Nerissa L. Remegio, Emmanuel M. Rivera, January C. Sarcilla, Mildred S. Victoria, and Dr. Amelia S. Ablen. 2019. “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 1 (1). https://ojs.aaresearchindex.com/index.php/aasgbcpjmra/article/view/1086.