Pienaar, J. G.; Van der Westhuizen, G.C.A.; Anderson, L.A.P.; Naude, T.W.; Kellerman, T. Stephanus(Published by The Government Printer, Pretoria, 1976)
Fourie, Niel; Kellerman, T. Stephanus; Cornelius, S.T.; Ward, Caroline; Van der Lugt, Jaco J.(Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1994)
Van der Merwe, W.J.J.; Eicker, A.; Marasas, Walter F.O. (Walter Friedrich Otto); Kellerman, T. Stephanus(Published by The Government Printer, Pretoria, 1979)
Basson, P.A.; Miller, E.S.; Kellerman, T. Stephanus; Albl, P.; Von Maltitz, L.J.F.; Welman, Wilhelmina G.(Published by The Government Printer, Pretoria, 1975)