The proportion of body components contribution of some in the prediction of some element of fitness for middle school students (12-13) years. Sport culture, [S. l.], v. 9, n. 2, p. 33–53, 2018. DOI: 10.25130/. Disponível em: https://jsc.tu.edu.iq/index.php/jsc/article/view/36. Acesso em: 17 jul. 2026.