ANDRI IRAWAN. Basic Concepts and Importance of Educational Materials Development for Teachers and Students: General Theoretical Ideas. Al-Ahnaf: Journal of Islamic Education, Learning and Religious Studies , [S. l.], v. 2, n. 1, p. 167–177, 2025. DOI: 10.61166/ahnaf.v2i1.19. Disponível em: https://al-ahnaf.my.id/index.php/i/article/view/19. Acesso em: 23 sep. 2025.