1. K. Parfitt (Ed.), Martindale, the Complete Drug Reference, 32d ed., Pharmaceutical Press, 1993, p. 352.
2. United States Pharmacopeia 24, United States Pharmacopeial Convention, Asian Edition, the Board of Trustees, 2000, pp. 1322–1326.
3. British Pharmacopoeia, The Stationary Office, London, 1998, pp. 1033–1035, 1871, 1872.
4. First Derivative Spectrophotometric Determination of Phenytoin