Mugido, Worship; Blignaut, James Nelson; Joubert, Matthew; De Wet, John; Knipe, Andrew; Joubert, Selmé; Cobbing, Ben; Jansen, James; Le Maitre, D.C. (David Carlyle); Van der Vyfer, Marius(Academy of Science of South Africa, 2014)
Mudavanhu, Shepherd; Blignaut, James Nelson; Nkambule, Nonophile; Morokong, Tshepo; Vundla, Thulile(University of Pretoria, Department of Economics, 2016)