Moolman, Lizette; De Morney, Melanie A.; Ferreira, Sam M.; Ganswindt, Andre; Poole, Joyce H.; Kerley, Graham I.H.(Southern African Wildlife Management Association, 2019)
Makungu, Modesta; Du Plessis, Wencke M.; Barrows, Michelle; Koeppel, Katja Natalie; Groenewald, Hermanus B.(American Association of Zoo Veterians, 2012)
University of Pretoria, Faculty of Veterinary Science. Dept. of Veterinary Anatomy and Physiology(Pretoria : University of Pretoria, Faculty of Veterinary Science. Dept. of Veterinary Anatomy and Physiology, 1980)
University of Pretoria, Faculty of Veterinary Science. Dept. of Veterinary Anatomy and Physiology(Pretoria : University of Pretoria, Faculty of Veterinary Science. Dept. of Veterinary Anatomy and Physiology, 1995)