Fru, Felix Fon; Steenkamp, Emma Theodora; Wingfield, Michael J.; Roux, Jolanda(NISC (Pty) Ltd and Informa UK Limited (trading as Taylor & Francis Group), 2019)
Roux, Jolanda; Wingfield, Michael J.; Fourie, Arista; Noeth, K.; Barnes, Irene(NISC (Pty) Ltd and Informa UK Limited (trading as Taylor and Francis Group), 2020)