Pant, Anil Dev, et al. “A Rare Case of Yolk Sac Tumor of the Vagina: Cytology and Histopathological Findings”. Nepal Journal of Obstetrics and Gynaecology, vol. 1, no. 2, Dec. 2009, pp. 63-65, https://nepjol.info./index.php/NJOG/article/view/2402.