du Toit, P., St. Clair Gibson, A., Wood, P., Grant, C., Grimes, K., Tope, A., Janse van Rensburg, C., van Rooyen, J., Mckune, A., Nortj�E., Fletcher, L., Ferreira, R., Joubert, A., & Stander, A. (2014). Influence of intense training program on cardio stress index. Suid-Afrikaans Tydskrif Vir Natuurwetenskap En Tegnologie / <i>South African Journal of Science and Technology</I&gt;, 33(1), 6 bladsye. https://doi.org/10.4102/satnt.v33i1.1180