1. Bonati, A., 1989. Guidelines for the chemical and biological assessment of herbals and herbal preparations, UNIDO 1–18.
2. Natural products in drug discovery and development;Gordon;J. Natl. Prod.,1997
3. Korean Pharmacopoeia, 1997. Seventh ed., Medicine Publishers, Seoul, Korea.
4. Korean Herbal Pharmacopoeia, 1987. Ministry of Health and Welfare, Korea.
5. Should we be concerned about herbal remedies;Memory;J. Ethnopharmacol.,2001