Dhansay, Taufeeq, Chiedza Musekiwa, Thakane Ntholi, Luc Chevallier, Doug Cole, and Maarten J. de Wit. 2017. “South Africa’s Geothermal Energy Hotspots Inferred from Subsurface Temperature and Geology”. South African Journal of Science 113 (11/12):7. https://doi.org/10.17159/sajs.2017/20170092.