MUHAMMADIYAH SCHOOL MANAGEMENT STRATEGY IN BANGKA BELITUNG. Berumpun: International Journal of Social, Politics, and Humanities, [S. l.], v. 3, n. 1, p. 13–22, 2020. DOI: 10.33019/berumpun.v3i1.24. Disponível em: https://berumpun.ubb.ac.id/index.php/BRP/article/view/24. Acesso em: 8 nov. 2025.