The effect of complex exercises using balls of variation weights on some of physical variables of junior football players. Sport Culture, [S. l.], v. 14, n. 1, p. 38–57, 2023. DOI: 10.25130/. Disponível em: https://jsc.tu.edu.iq/index.php/jsc/article/view/316. Acesso em: 26 oct. 2026.