Karki, A., G. Dangal, H. Pradhan, R. Shrestha, and K. Bhattachan. “Medical and Surgical Abortion in the Second Trimester of Pregnancy”. Nepal Journal of Obstetrics and Gynaecology, vol. 10, no. 1, Aug. 2015, pp. 25-29, https://nepjol.info./index.php/NJOG/article/view/13189.