Al-Azad, S., S. Rupa, and N. Khan. “Doppler Prediction of Perinatal Outcome in Pregnancy Induced Hypertension and Intrauterine Growth Retardation”. Mymensingh Medical Journal, vol. 19, no. 4, Dec. 2010, pp. 539-42, https://banglajol.info/index.php/MMJ/article/view/6714.