سعيد علي ن. Factor Affecting Pupils Participation inPhysical Education Lesson. College of Basic Education Research Journal, [S. l.], v. 2, n. 3, p. 34–50, 2006. Disponível em: https://stats.uomosul.edu.iq/index.php/berj/article/view/38968. Acesso em: 26 oct. 2025.