Mills, C., Coetzee, N., Nortje, E., Kleynhans, M., Ferreira, R., Fraser, W. and Du Toit, P. (2014) “The effect of emotional state on the learning of visual skills”, Suid-Afrikaans Tydskrif vir Natuurwetenskap en Tegnologie / <i>South African Journal of Science and Technology</i&gt;, 33(1), p. 9 bladsye. doi: 10.4102/satnt.v33i1.1171.