COOK, I; LAMBERT, EV. Sources of variance and reliability of objectively monitored physical activity in rural and urban Northern Sotho-speaking blacks. South African Journal of Sports Medicine, [S. l.], v. 20, n. 1, p. 21–26, 2008. DOI: 10.17159/2078-516X/2008/v20i1a288. Disponível em: https://journals.assaf.org.za/index.php/sajsm/article/view/288. Acesso em: 16 apr. 2025.