Habsyi F, Usman A. THE ROLE OF SUPERVISION OF THE PRINCIPAL AT JUNIOR HIGH SCHOOL 12, HALMAHERA TENGAH. JUPEK [Internet]. 21Dec.2021 [cited 17Aug.2025];3(1):17-5. Available from: https://jurnal.isdikkieraha.ac.id/index.php/jupek/article/view/258