DELLYANA DELLYANA; YASIR ARAFAT; MUHAMMAD FAHMI. Leadership of the School Principal in Increasing Teacher Competency in State Elementary School 09 Pemulutan. International Journal of Social Science and Humanity, [S. l.], v. 2, n. 1, p. 109–121, 2025. DOI: 10.62951/ijss.v2i1.266. Disponível em: https://international.appisi.or.id/index.php/IJSS/article/view/266. Acesso em: 28 feb. 2026.