Kumari, S., and B. Singh. “Maternal and Perinatal Outcome of Placenta Previa in a Tertiary Care Centre: An Observational Study”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, vol. 7, no. 11, Oct. 2018, pp. 4701-5, doi:10.18203/2320-1770.ijrcog20184533.