1. Leiper, J. W. G. (1957).Animal parasites and their control. Report to the Government of Iraq. Rome: FAO No. 610.
2. Levine, N. D. (1963)Advances in Veterinary Science,8, 215–261.
3. Robson, J. &Robb, J. M. (1967). ‘Ticks of domestic animals in Iraq’.Journal of Medical Entomology,4, 289–293.
4. UNDP/FAO;K. D. Skerman,1966
5. Soulsby, E. J. L. (1965). Text-book of veterinary clinical parasitology. Vol. 1: Helminths. Oxford: Blackwell Scientific Publications,1, 120 pp.