Jansen van Vuuren, P., E. Henning, M. Kleynhans, H.C. Terblanche, D. Crafford, C. Grobbelaar, S. Gray, P.S. Wood, C.C. Grant, D.C. Janse van Rensburg, P.E. Kruger, and P.J. du Toit. 2014. “The Effect of Sport Specific Exercises on the Visual Skills of Adult Rugby Players”. Suid-Afrikaans Tydskrif Vir Natuurwetenskap En Tegnologie / <i>South African Journal of Science and Technology</I&gt; 33 (1), 1 bladsy. https://doi.org/10.4102/satnt.v33i1.1234.