Valdez, Marlon R., and Phillip G. Queroda. “Leadership Coaching Competencies of Public Secondary School Heads”. Asian Journal of Multidisciplinary Studies 2, no. 1 (March 14, 2019): 93–98. Accessed October 7, 2026. https://asianjournal.pti.edu.ph/index.php/ajms/article/view/206.