1. Barnett, S. F. (1961). The control of ticks on livestock, FAO Agricultural Studies No 54, FAO, Rome.
2. Keating, Molly I. (1979).Bulletin of Animal Health and Production in Africa,27, 279–286.
3. Keating, Molly I. (1980).Journal of the Association of Official Analysts,63, 33–36.
4. Kenya (1947). Department of Veterinary Services Annual Report, p. 55.
5. Kenya (1954). Department of Veterinary Services Annual Report, p. 60.