Ker, James A.; Webb, E.C. (Edward Cottington); Van Papendorp, D.H. (Dirk Hermanus), 1949-(Agricultural Research Council, ARC-OVI and the University of Pretoria, 2009-12)
Du Toit, Peet J.; Kruger, P.E. (Pieter Ernst); Fowler, K.F.; Govender, Catherine; Clark, James R.(Africa Association for Health, Physical Education, Recreation, Sport and Dance, 2010-09)