Kellerman, T. Stephanus; Schultz, R.A. (Rowena Anitra); Rabie, C.J.; Van Ark, H.; Maartens, B.P.; Lubben, Annelie(Published by the Agricultural Research Council, Onderstepoort Veterinary Institute., 1991)
Botha, C.J. (Christoffel Jacobus); Van der Lugt, Jaco J.; Erasmus, G.L.; Kellerman, T. Stephanus; Schultz, R.A. (Rowena Anitra)(Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1997)
Botha, C.J. (Christoffel Jacobus); Kellerman, T. Stephanus; Schultz, R.A. (Rowena Anitra); Erasmus, G.L.; Retief, E.P.(Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1998)
Kellerman, T. Stephanus; Maartens, B.P.; Schultz, R.A. (Rowena Anitra); Swart, D. Petro(Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1994)
Anderson, L.A.P.; Joubert, J.P.J.; Kellerman, T. Stephanus; Pienaar, Barendina J.; Schultz, R.A. (Rowena Anitra)(Published by the Government Printer, Pretoria., 1987)
Swan, Gerry E.; Schultz, R.A. (Rowena Anitra); Kellerman, T. Stephanus; Mulders, M.S.G.; Maartens, B.P.; Van der Walt, J.J.(Published by the Agricultural Research Council, Onderstepoort Veterinary Institute, 1995)