1. Yilma Z. , E. Guernebleich , A. Sebsibe , and R. Fombad . 2011. “A Review of the Ethiopian Dairy Sector. Addis Ababa, Ethiopia.” FAO Sub-Regional Office for Eastern Africa (FAO/SFE).
2. An Analysis of Food Security Situation among Nigerian Urban Households: Evidence from Lagos State, Nigeria;Titus;Journal of Central European Agriculture,2007
3. Tegegne S.D. 2012. Livestock Water Productivity (LWP) “Improvement in the Mixed Crop-Livestock System of Ethiopian Highlands, Amhara Region: A Gendered Sustainable Livelihood Approach to Target LWP Interventions for Rural Poverty Reduction.” A PhD thesis, Rheinischen Friedrich-Wilhelm's-University of Bonn, Germany.