The effect of special exercises for different groups in developing the performance endurance under 20 years of football players. Journal of Humanities and Social Sciences Research, [S. l.], v. 3, n. 5, 2024. DOI: 10.33687/jhssr.003.05.0419. Disponível em: https://jhssrjournal.com/index.php/journal/article/view/419. Acesso em: 10 may. 2026.