1. ‘Physician's Desk Reference’,1969
2. Wilson and Giswold's Textbook of Organic, Medicinal and Pharmaceutical Chemistry;Daniels,1979
3. Index Guide (1985) Chemical Abstracts.
4. ‘Remington's Pharmaceutical Sciences’;Swinyard,1980
5. The Merck Index (1983) 10th Ed., P1095.