1. Trends in maternal mortality: 1990 to 2010,2012
2. Countdown to 2015 decade report (2000–10): taking stock of maternal, newborn, and child survival;ZA Bhutta;The Lancet
3. Ethiopia Demographic and Health Survey 2000,2001
4. Ethiopia Demographic and Health Survey 2011,2012
5. Assessment of Quality of Health Care in Jimma Zone, Southwest Ethiopia;Waju Beyene;Ethiop J Health Sci,2011