Rangaswamy, M., and K. Govindaraju. “Fetomaternal Outcome in Placenta Previa - a Retrospective Study in Teaching Hospital”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, vol. 5, no. 9, Feb. 2017, pp. 3081-4, doi:10.18203/2320-1770.ijrcog20162989.