H. Ferdousy, F. Sultana, M. K. Nahaer, M. M. M. Begum, and M. M. Begum, “Risk Factors and Maternal Outcome of Secondary Post Partum Haemorrhage in Rangpur Medical College Hospital. - A one year study”, Bangladesh J Obstet Gynaecol, vol. 33, no. 2, pp. 107–112, Jul. 2020.