Megasari, MIratu. 2013. “Factors Associated With the Incidence of Postpartum Hemorrhage in Arifin Achmad Riau Province Year 2009-2010”. Jurnal Kesehatan Komunitas (Journal of Community Health) 2 (2):72-77. https://doi.org/10.25311/keskom.Vol2.Iss2.48.