1. Yari M. (1962) Study on hydatid cyst and its infection rate among animals slaughtered in slaughterhouses in Teheran. Thesis for Veterinarian Medical degree from School of Veterinary Medicine, Teheran University, No. 318.
2. Quoted by Alani and Maghami (1964);Khalili;The Archieves Institute of Razi,1962
3. Pulmonary Hydatid Disease in Iraq
4. The epidemiology of Echinococcu infection in Kuwait
5. Incidence and fertility rate of hydatid cysts in Indian Buffalo (Bos bubalns).;Gill;Bulletin Office International des Epizooties,1967