1. Mother and Child Health General Director of Family Planning. Population problem in the view of health, development, and environment in Turkey and in the world. Ankara 1995:21.
2. National public health congress;Ergör G,1994
3. Hacettepe Institute of Population Studies. Turkish population and health survey,1998
4. The effective use of health education in the prevention of abortus;Eroğlu;Clin Sci Doctor,1997