RUZMAT, S. . Willpower Training of Football Players. International Journal on Human-Computing Studies, [S. l.], v. 4, n. 1, p. 68–71, 2022. DOI: 10.31149/ijhcs.v4i1.2687. Disponível em: https://journals.researchparks.org/index.php/IJHCS/article/view/2687. Acesso em: 16 oct. 2026.