Singh, A., and S. . “Changing Trends of Cesarean Section Using Robson’s Ten-Group Classification in Tertiary Centre: A Retrospective Study”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, vol. 8, no. 5, Apr. 2019, pp. 2095-9, doi:10.18203/2320-1770.ijrcog20191974.