South African Society for Greek Philosophy and the Humanities; Gericke, J.D. (John Daniel)(South African Society for Greek Philosophy and the Humanities, 2000)
Edwards, David John; Steyn, B.J.M. (Barend Johannes Marthinus)(Africa Association for Health, Physical Education, Recreation, Sport and Dance, 2011-09)
Brennan-Jones, Christopher G.; Whitehouse, Andrew J.O.; Calder, Samuel D.; Da Costa, Cheryl; Eikelboom, Robert H.; Swanepoel, De Wet; Jamieson, Sarra E.(American Speech-Language-Hearing Association, 2020-07)