O'Neil, John Wesley; Steyn, B.J.M. (Barend Johannes Marthinus)(Southern African Alliance for Sport Science, Physical Education and Recreation, 2007)
Wood, Paola Silvia; Kruger, P.E. (Pieter Ernst); Loots, J.M.; Grimbeek, J. (Jackie)(Africa Association for Health, Physical Education, Recreation, Sport and Dance, 2007-12)