ADEL FADHLI, S.; MOHAMED ADNAN, M. A.; MAHYOUB MURSHED, A. A. (التفاؤل ودوره في مادة التربية الإسلامية للمرحلة المتوسطة: (دراسة ميدانية: Optimism and its role in the Islamic education for the intermediate stage. Online Journal of Research in Islamic Studies, [S. l.], v. 6, n. 2, p. 11–27, 2019. Disponível em: https://ejournal.um.edu.my/index.php/RIS/article/view/19900. Acesso em: 7 may. 2024.