Cooper, S. “Spontaneous Ipsilateral Ectopic Pregnancy in the Tubal Stump of Previous Partial Salpingectomy”. Nepal Journal of Obstetrics and Gynaecology, vol. 7, no. 1, Oct. 2013, pp. 50-52, https://www.nepjol.info/index.php/NJOG/article/view/8837.