Heartwater : Past, Present and Future. Workshop (1986 : Kruger National Park, South Africa); Stewart, C.G.(Published by the Government Printer, Pretoria., 1987)
Heartwater : Past, Present and Future. Workshop (1986 : Kruger National Park, South Africa); Van der Merwe, Lente(Published by the Government Printer, Pretoria., 1987)
Mushi, E.Z.; Binta, M.G.; Chabo, R.G.; Ndebele, R.; Panzirah, R.(Published by the Agricultural Research Council, Onderstepoort Veterinary Institute ., 2000)