Nortje, Nico, Mieke Faber, and Anniza de Villiers. “School Tuck Shops in South Africa—an Ethical Appraisal”. South African Journal of Clinical Nutrition 30, no. 3 (October 19, 2017): 30-35. Accessed June 25, 2019. http://sajcn.co.za/index.php/SAJCN/article/view/1180.