Mangadlao, Julito, and Jane Oropa. “Enhancing Supervisory Programs through Instructional Practices of School Heads”. Journal of Interdisciplinary Perspectives 3, no. 3 (March 2, 2025): 398–406. Accessed January 15, 2026. https://www.jippublication.com/index.php/jip/article/view/607.