EKO SIGIT PURWANTO. The Principal’s Leadership Strategy in Improving the Quality of Learning at MTs Darul Falah Sumbergempol Tulungagung. International Journal of Islamic Educational Research, [S. l.], v. 3, n. 2, p. 01–07, 2026. DOI: 10.61132/ijier.v3i2.527. Disponível em: https://international.aripafi.or.id/index.php/IJIER/article/view/527. Acesso em: 10 may. 2026.