1. 2. Association of Official Analytical Chemists, and A.O.A.C .). Official Methods of Analysis . 15th edn. Arlington, Virginia, 1990 :356 -357 .
2. 3. G Bath, and J. de Wet, Sheep and Goat Diseases . Cape Town: Tafelberg, 2000 :169 -171 .
3. CHRONIC INTERSTITIAL NEPHRITIS FOLLOWING PARENTERAL COPPER SULFATE POISONING
4. 5. G Christodoulopoulos, and N. Roubies, Chronic copper poisoning in milking ewes due to compound feeding . In: Proceedings. 6th International Sheep Veterinary Congress2005 ;345 -346 .