KARABAĞ, S.; TAŞ, Z. The examination of the effect of caffeine supplementation in professional soccer players. Physical Education of Students, [S. l.], v. 23, n. 3, p. 129–141, 2019. DOI: 10.15561/20755279.2019.0304. Disponível em: https://www.sportedu.org.ua/index.php/PES/article/view/832. Acesso em: 14 jul. 2026.