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                        Yardımcı Kaynaklar
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                        Alaçam E., Şahal M., 1997. Sığır Hastalıkları, Medisan, Ankara.
Smith B.P., 1996. Large Animal Internal Medicine, Mosby, London, Boston, Philadelphia.
Howard J.L., 1993.Current Veterinary Therapy 3 & Food Animal Practice, W. B. Saunders Company, Philadelphia, London. 
Blood, D.C., Radostits O.M., Arundel J.H., Gay C.C., 1989.Veterinary Medicine & A Textbook of the Diseases of Cattle, Sheep, Pigs, Goats and Horses, Baillière Tindall, London, Philadelphia.
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