MOHAMMED KHALAF, A. Historical Development of Walking Sport. College of Basic Education Research Journal, [S. l.], v. 12, n. 4, p. 837–860, 2013. DOI: 10.33899/berj.2013.Vol12.Iss4.38298. Disponível em: https://berj.uomosul.edu.iq/index.php/berj/article/view/38298. Acesso em: 2 nov. 2025.