HASBULLAH, N. N.; FAHYUNI, E. F. The Leadership of School Principals in Improving Teachers’ Professional Competence (Study of MTs Muhammadiyah Jayapura): Kepemimpinan Kepala Sekolah dalam Meningkatkan Kompetensi Profesional Guru (Studi MTs Muhammadiyah Jayapura). Indonesian Journal of Innovation Studies, [S. l.], v. 27, n. 2, p. 10.21070/ijins.v27i2.1364, 2026. DOI: 10.21070/ijins.v27i2.1364. Disponível em: https://ijins.umsida.ac.id/index.php/ijins/article/view/1364. Acesso em: 6 sep. 2026.