Rajavelu, S., V. Dayalan, and S. S. “A Study on Maternal and Perinatal Outcome of Oligohydramnios in Term Low Risk Pregnancy”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, vol. 8, no. 11, Oct. 2019, pp. 4346-9, doi:10.18203/2320-1770.ijrcog20194855.