HAMDI, F.; SULEIMAN AL-HOURI, oglah; KHALED AL-NAMA, W. The effectiveness of a proposed program for a number of psychological skills in developing the characteristic of athletic courage among eyeball players. College of Basic Education Research Journal, [S. l.], v. 19, n. 4, p. 816–832, 2023. DOI: 10.33899/berj.2023.181889. Disponível em: https://moss.uomosul.edu.iq/index.php/berj/article/view/39733. Acesso em: 26 oct. 2025.