Astuti, V., Bedi, F. and Fitri, T. A. (2025) “THE ROLE OF SCHOOL PRINCIPALS IN DRIVING MGMP AS A MEANS OF PROFESSIONAL DEVELOPMENT OF JUNIOR HIGH SCHOOL TEACHERS”, Al-Ulum Jurnal Pemikiran dan Penelitian ke Islaman, 12(2), pp. 136–142. doi: 10.31102/alulum.12.2.2025.136-142.