Dini F. Omari, Yusrawati, and Satya W. Yenny, “Maternal Deaths due to Obstetric Hemorrhage in Padang, Indonesia: A Case-Control Study: Kematian Maternal Akibat Perdarahan Obstetri di Kota Padang: Sebuah Studi Kasus-Kontrol”, Indones J Obstet Gynecol, vol. 9, no. 2, pp. 65–69, Apr. 2021.