1. Anonymous, 1996, In: Wealth of India: raw materials, vol. VII. CSIR, New Delhi.
2. Termination of early pregnancy: future development;Bygdeman;Acta Obstetricia et Gynecologica Scandinavica,1983
3. The possible use of antiprogestins for contraception;Bygdeman;Acta Obstetricia et Gynecologica Scandinavica,1997
4. ‘Atresia’ in Ovarian Development and Function;Byskov,1979
5. Glossary of Indian Medicinal Plants;Chopra,1956