على أكبر فاتن; بيخال غفور شريف. Building a measure of self-improvement among the players of the Iraqi elite football clubs. sports creativity, [S. l.], v. 14, n. 02, p. 15–34, 2025. Disponível em: https://journals.univ-msila.dz/index.php/JOSC/article/view/519. Acesso em: 4 feb. 2026.