Saira Yunus, Bushra Bano, S. Tasneem, and Amtullah Zarreen. “Repeat Cesarean Section: A Major Risk Factor for Peripartum Hysterectomy”. Pakistan Journal of Medical Research, vol. 59, no. 4, Jan. 2021, pp. 152-6, https://www.pjmr.org.pk/index.php/pjmr/article/view/152.