Jonah, C. M. ., R. . Mabhena, and J. D. . May. “Does Subsistence Farming Ameliorate Hunger in Urban Areas? A Quantitative Examination of Urban Areas in South Africa”. Journal of Reviews on Global Economics, vol. 9, Apr. 2020, pp. 191-9, https://mail.lifescienceglobal.com/pms/index.php/jrge/article/view/8129.