Khatun, A., N. N. Khanam, and F. Nazir. “Role of Elaborate Cardiotocography (CTG) in Pregnancy Management”. Bangabandhu Sheikh Mujib Medical University Journal, vol. 2, no. 1, Nov. 2009, pp. 18-24, doi:10.3329/bsmmuj.v2i1.3706.