1. A review of work on Indian medicinal plants including indigenous drugs and poisonous plants;Chopra;ICMR Special Research Series,1955
2. Antifertility activity of a volatile fraction of Neem oil;Riar;Contraception,1991
3. Neem oil as a vaginal contraceptive;Sinha;Indian J Med Res,1984
4. Volatile fraction of Neem as spermicide;Riar;Contraception,1990
5. Antifertility effects of Neem oil by single intrauterine application: A novel method of contraception;Upadhyay,1990