Irfandri, Khairuddin, Bahrun. PRINCIPAL DEVELOPMENT OF CERTIFIED TEACHERS TO ENHANCE THE QUALITY OF LEARNING IN BABAHROT DISTRICT ELEMENTARY SCHOOLS, SOUTHWEST ACEH REGENCY. IJSET [Internet]. 2024 Oct. 2 [cited 2025 Sep. 11];3(11):1877-86. Available from: https://ijset.org/index.php/ijset/article/view/581