Van Heerden, Cornelius Hendrik, 1957-; Van Heerden, Neels, 1957-; Green, M.; Van Tonder, Estelle(Africa Association for Health, Physical Education, Recreation, Sport and Dance, 2007-12)
Harmse, Chris; Jordaan, Andre Cillie; Jordaan, Yolanda(University of Wisconsin Press in cooperation with the Institute for Media Analysis in South Africa (iMasa) and the Department of Journalism at Stellenbosch University, South Africa, 2001)