السلام ابراهيم مجيد الماجد ع. The Relationship Between Achievement Motivation and Mental Capacity in Biology for Fourth Secondary School. College of Basic Education Research Journal, [S. l.], v. 3, n. 3, p. 67–98, 2007. Disponível em: https://stats.uomosul.edu.iq/index.php/berj/article/view/39823. Acesso em: 26 oct. 2025.