AMRULLAH, A.; SERAJ, P. M. I.; ABD AL-LATEEF, G. T.; GALAL, M. Optimization and Synergy of Non-formal Islamic Education in the Three Centers of Islamic Education. International Journal of Education Research and Development, [S. l.], v. 3, n. 1, p. 51–60, 2023. DOI: 10.52760/ijerd.v3i1.40. Disponível em: https://e-journal.yayasancec.or.id/index.php/corolla/article/view/40. Acesso em: 11 feb. 2026.