References
- Fox C. D., Richmond H. D., Shangraw R. F. J. Pharm. Sci 1965; 54: 447
- Mendel E. J. Manf. Chem. and Aeras. News 1972; 43: 40
- Partie T. Labo-Pharma-Problemes et Techniques 1976; 252: 237
- Thbaut A. D., et al. R. Sci. Techn. Pharm 1974; 1
- Butler A. Q., Ransey J. C., Jr. Drug Standards 1952; 20: 217
- Train A. J. Pharm, Pharmacol 1958; 10: 1271
- United States Pharmascopeis. Mack Publishing Coppany, Eaacon, PA 1975; 651: 812, XIX Revision