Van der Linde, Jeannie; Swanepoel, De Wet; Glascoe, Frances Page; Louw, Elizabeth M.; Hugo, Johannes F.M.; Vinck, Bart M.(AOSIS OpenJournals, 2015-09-08)
Goslin, Anneliese E. (Anna Elizabeth); Van der Klashorst, Engela; Kluka, Darlene Ann; Van Wyk, Johannes G.U.(The Australian Association of Adult and Community, 2016-04)