Svinurai, Walter; Hassen, Abubeker; Tesfamariam, Eyob Habte; Ramoelo, Abel(NISC (Pty) Ltd and Informa UK Limited (trading as Taylor & Francis Group), 2021)
Marneweck, Courtney J.; Van Schalkwyk, Ockert Louis; Marneweck, David G.; Beverley, Grant; Davies-Mostert, Harriet T.; Parker, Daniel M.(Oxford University Press, 2021-07)