ASSMAR, M. Effect of using mental training accompanied with the random scheduling practice in developing some basic skills for goal keepers in football. Al-Rafidain Journal For Sport Sciences, [S. l.], v. 16, n. 54, p. 30–52, 2010. DOI: 10.33899/rajsport.2010.6017. Disponível em: https://rsprs.uomosul.edu.iq/index.php/rsprs/article/view/50832. Acesso em: 2 oct. 2025.