Khobai, Hlalefang, Sanderson Abel, and Pierre Le Roux. “An Investigation into the Electricity Supply and Economic Growth Nexus for South Africa”. International Journal of Energy Economics and Policy 6, no. 4 (October 21, 2016): 701–705. Accessed May 29, 2023. https://econjournals.com/index.php/ijeep/article/view/2590.