PENTINGNYA KEPALA SEKOLAH YANG PROFESIONAL DI LEMBAGA PENDIDIKAN. Ummul Qura Jurnal Institut Pesantren Sunan Drajat (INSUD) Lamongan, [S. l.], v. 13, n. 1, p. 39–49, 2019. DOI: 10.55352/uq.v13i1.407. Disponível em: https://ejournal.unsuda.ac.id/index.php/UQ/article/view/407. Acesso em: 22 apr. 2026.