Bolo, C. G. ., A. A. . Belen, R. . Garsula, J. D. . Mangompit, H. P. . Remulta, and D. A. S. . Ablen. “Bullying: Effects in the Academic Performance of Grade 9 Students in Tandang Sora National”. 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/1074.