Williams, June Heather; Van Dyk, Enette; Nel, Petrus Johannes; Lane, Emily P.; Van Wilpe, Erna; Bengis, Roy G.; De Klerk-Lorist, Lin Mari; Van Heerden, J.(South African Veterinary Association, 2011-05)
Van Dyk, Enette; Bosman, Anna-Mari; Van Wilpe, Erna; Williams, June Heather; Bengis, Roy G.; Van Heerden, J.; Venter, Estelle Hildegard(South African Veterinary Association, 2011-04)