Bansal, N., P. Chaudhary, M. Ramola, and N. Saxena. “Comparison of Metformin and Insulin in the Treatment of Gestational Diabetes: A Retrospective Study”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, vol. 5, no. 12, Dec. 2016, pp. 4356-60, doi:10.18203/2320-1770.ijrcog20164342.