1. Drugs in Veterinary Practice,1978
2. FDA’s 1990 Milk Residue Survey. Description of Analytical Methods used for Detecting Sulfonamides and Tetracyclines. Center for Veterinary Medicine, Beltsville, Maryland.
3. Chronic toxicity/carcinogenicity studies of sulphamethazine in Fischer 344/N rats: Two-generation exposure
4. 21 CFR 500.640, (1992) 474.