1. Livestock Exports from the Horn of Africa: AnAnalysis of Benefits by Pastoralist Wealth Group and Policy Implications;Aklilu,2009
2. Revisiting Neolithic caprine exploitation at Suberde;Arbuckle;Journal of Field Archaeology,2008
3. The Origins and Development of African Livestock;Blench,1999
4. Bradford, G.E., Fitzhugh, H.A. (Eds.), 1983. Hair sheep: A general description. In: Hair Sheep of Western Africa and the Americas. A Genetic Resource for the Tropics. A Winrock International Study. Boulder, CO: Westview Press, pp. 3–22.
5. The Covenant of the Wild: Why Animals Chose Domestication;Budiansky,1999