1. Negwer , M. and
Scharnow , H.G. 2001. Organic-Chemical Drugs and Their Synonyms, 8th ed, 4254Weinheim, Germany: Wiley-VCH.
2. Tennant , G. 1979. Comprehensive Organic Chemistry, Edited by:
Barton , D.
Ollis , D. W. and
Sutherland , I. O. Vol. 2, 528Oxford, UK: Pergamon Press.