1. Obstetrics: Normal and Problem Pregnancies;Gabbe,2012
2. Llewellyn-Jones Fundamentals of Obstetrics and Gynaecology;Oats,2016
3. Hacker & Moore’s Essentials of Obstetrics and Gynecology;Hacker,2015
4. Continuous Cardiotocography (CTG) as a form of Electronic Fetal Monitoring (EFM) for Fetal Assessment during Labour;Alferic,2013
5. Electronic Fetal Monitoring in the United States