VAN DER WALT, V. A survey of the attitudes and knowledge of parents of high school children on the East Rand on the usage of nutritional supplements. South African Journal of Sports Medicine, [S. l.], v. 28, n. 3, 2017. DOI: 10.17159/2078-516X/2016/v28i3a2086. Disponível em: https://journals.assaf.org.za/index.php/sajsm/article/view/2086. Acesso em: 16 apr. 2025.