Tini Mogea. “The Effect of Principal Academic Supervision and Teacher Teaching Performance on Student Achievement at Public Elementary Schools in East Ratahan”. ENGGANG: Jurnal Pendidikan, Bahasa, Sastra, Seni, dan Budaya 2, no. 2 (June 30, 2022): 354–366. Accessed July 26, 2024. https://e-journal.upr.ac.id/index.php/enggang/article/view/10870.