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Botha, D.M.; Coopoo, Y.; Botha, M.K.; Collins, Robert Matthew; Lynch, E.; Van Niekerk, R.L.(Africa Association for Health, Physical Education, Recreation, Sport and Dance, 2015-11)
Grant, C.C. (Catharina Cornelia); Janse van Rensburg, Dina Christina; Collins, Robert Matthew; Wood, Paola Silvia; Du Toit, Peet J.(Africa Association for Health, Physical Education, Recreation, Sport and Dance, 2012-03)
Tee, Jason C.; Bekker, Sheree; Collins, Robert Matthew; Klingbiel, Jannie; Van Rooyen, Ivan; Van Wyk, David; Till, Kevin; Jones, Ben(Elsevier, 2018-09)
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