Gupta, Amita, Sabha Musharaf, Gagan Singh, and Aakriti Gupta. “Morphological Changes in Placenta in Cases of Oligohydramnios”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology 7, no. 4 (March 27, 2018): 1518–1522. Accessed October 27, 2025. https://www.ijrcog.org/index.php/ijrcog/article/view/4422.