Eccles, Renata; Van der Linde, Jeannie; Le Roux, Maria (Mia); Holloway, Jenny; MacCutcheon, Douglas; Ljung, Robert; Swanepoel, De Wet(American Speech-Language-Hearing Association, 2021-01)
Tao, Karina F.M.; Moreira, Tais de C.; Jayakody, Dona M.P.; Swanepoel, De Wet; Brennan-Jones, Christopher G.; Coetzeea, Lize; Eikelboom, Robert H.(Taylor and Francis, 2021)