1. The new international seed treaty: Promises and prospects for food security.;B.Choudhary;Current Science,2002
2. CRPA. (2000). Demand Study for Selected Medicinal Plants: Volume I & II. Center for Research, Planning and Action (CRPA) for Ministry of Health & Family Welfare, GOI, Department of ISM&H & WHO, New Delhi, India.
3. Current status and future strategy for development of medicinal plants sector in Uttaranchal, India.;U.Dhar;Current Science,2002
4. Hamilton, A. (2003). Medicinal plants and conservation: issues and approaches. WWF. Available from Internet: http://www.wwf.org.uk/filelibrary/pdf/medplantsandcons.pdf
5. Medicinal plants: A re-emerging health aid.;L.Hoareau;Electronic Journal of Biotechnology,1999