Mursiani, Mursiani. “The Influence of Principal’s Academic Supervision, Teacher’s Professionalism on the Quality of Education”. PPSDP International Journal of Education 2, no. 1 (April 3, 2023): 142–150. Accessed July 10, 2026. https://ejournal.ppsdp.org/index.php/pijed/article/view/77.