Sharma, S., S. Moudgil, V. Kapoor, and A. Devi. “Primary Ovarian Ectopic Pregnancy: An Unusual Case Study”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, vol. 9, no. 4, Mar. 2020, pp. 1741-2, doi:10.18203/2320-1770.ijrcog20201258.