YOUSIF, T.; ABDULLO ALI, A. The Effect Of Problem Solutionmethodon Studentsgainingat The Second Intermediate Class In Islamic Education Subject. College of Basic Education Research Journal, [S. l.], v. 13, n. 1, p. 149–172, 2014. DOI: 10.33899/berj.2014.Vol13.Iss1.39542. Disponível em: https://berj.uomosul.edu.iq/index.php/berj/article/view/39542. Acesso em: 3 nov. 2025.