احمد إسماعيل ر. Factorial constructing for scale of Managerial Planning in Sport Unions in Ninavah. College of Basic Education Research Journal, [S. l.], v. 7, n. 3, p. 326–353, 2008. Disponível em: https://stats.uomosul.edu.iq/index.php/berj/article/view/39773. Acesso em: 26 oct. 2025.