WALTER, C. In-school physical activity patterns of primary school learners from disadvantaged schools in South Africa. African Journal for Physical Activity and Health Sciences, [S. l.], v. 17, n. 4, p. 780–789, 2012. DOI: 10.4314/ajpherd.v17i4. Disponível em: https://www.ajol.info/index.php/ajpherd/article/view/73490. Acesso em: 15 oct. 2026.