References
- The Encyclopedia of Psychoactive Plants: Ethnopharmacology and Its Applications by Christian Rätsch, Albert Hofmann. Park Street Press, Rochester 2005
- Handbook of Psychotropic Herbs: A Scientific Analysis of Herbal Remedies for Psychiatric Conditions, Russo Ethan. Haworth Press, New York 2001
- Pharmacotheon-Entheogenic Drugs, Their Plant Sources and History, Ott Jonathan. Natural Products Co., Kennewick 1993
- Taber’s Cyclopedic Medical Dictionary. F.A. Davis Company, Philadelphia 1984