Du Toit, Peet J.; Kruger, P.E. (Pieter Ernst); Chamane, N.Z.; Campher, Jolene; Crafford, Dalene(Africa Association for Health, Physical Education, Recreation, Sport and Dance, 2009-12)
Joubert, Annie M.; Marais, Sumari; Maritz, Christine(Centro Regional de Investigaciones Cientificas Y Tecnologicas / Universidad Nacional de Cuyo, 2009-02)
Joubert, Annie M.; Van Zyl, Hermia; Laurens, Johannes B.; Lottering, Mona-Liza(Centro Regional de Investigaciones Cientificas Y Tecnologicas / Universidad Nacional de Cuyo, 2009)
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)