1. USP 23, Rockville, Md., United States Pharmacopoeial Convention, 1995.
2. British Pharmacopoeia, The Pharmaceutical Press, London, UK, 1998.
3. European Pharmacopoeia, third edition 1997, Council of Europe, Strasbourg Cedex, 1996.
4. Simultaneous Spectrophotometric Determination of Hydrochlorothiazide and Pharmaceutical Preparations