1. Nonstress Test and Maternal Position
2. K Adamsons, H Anderson, and A Bent (1990 ) Obstetrics and Gynecology , 6th edn. Lippincott Company, Philadelphia. pp. 321 -329 .
3. M Arhan, S Gokkaya, and M Gumus (1998 ) Tus ve stajlar icin obsetetri ve jinekoloji ders notlari . Nobel Tip Kitapevi, Med-Ar serisi. pp. 295 -299 .
4. A Coskun, and H Karaniso?lu (1999 ) Do?um ve kadin hastaliklari hemsireli?i. anadolu universitesi yayinlari . Anadolu Universitesi Web-Ofset Tesisleri, Eskisehir. pp. 77 -83 .
5. R Creary, and R Resnik (1989 ) Maternal - Fetal Medicine , 2nd edn. W.B. Saunders Company, Philadelphia. pp. 338 -341 .