Apilado, Narcie Ricky A. “Instructional Supervision Support of School Heads of Public Junior High School Teachers, Schools Division Office – City Of San Fernando (La Union)”. Ascendens Asia Singapore – Union Christian College Philippines Journal of Multidisciplinary Research Abstracts, vol. 1, no. 1, Dec. 2018, https://ojs.aaresearchindex.com/index.php/aasguccphjmra/article/view/495.