1. European Pharmacopoeia, 4th ed., Council of Europe, Strasburg (2002)
2. British Pharmacopoeia, Her Majesty’s Stationery Office, London (2000)
3. U.S. Pharmacopoeia 24th Rev. U.S. Pharmacopeial Convention, Rockville, MD (1999)
4. Analysis of macrolide antibiotics by liquid chromatography