1. WHO UNICEF, and The World Bank (2012) Trends in maternal mortality: 1990–2010. Geneva: WHO.
2. World Health Organization (2010) Trends in maternal mortality: 1990 to 2008.
3. Malawi Ministry of Development Planning and Cooperation (2010) 2010 Malawi Millenium Development Goal Report.
4. National Statistical Office and ICF Macro (2011) Malawi demographic and health survey 2010. Zomba, Malawi and Calverton, Maryland, USA: NSO and ICF Macro.
5. Practical applications of epidemiology;R Friis;In: Epidemiology for public health practice. Sudbury, MA: Jones and Barlett Publishers,2009