1. Working Party of the Royal College of Obstetricians and Gynaecologists. Unplanned pregnancy,1972
2. Working Party of the Royal College of Obstetricians and Gynaecologists. Report on unplanned pregnancy,1991
3. Education in sex and personal relations;Allen, I.;London: Policy Studies Institute,1987
4. Health education in schools;Council, National Curriculum,5.)
5. Post-coital contraception-a two year evaluation of a service;Friedman, E.H.I.; Rowley, D.E.M.;British Journal ofFamily Planning,1987