1. Agajie T, Ebrahim J, Sitotaw F, David G, Smith (2005). Technology Transfer Pathways and Livelihood Impact Indicators in Central Ethiopia. J. Trop. Anim. Health Prod. 37(1):101–122.
2. Berhanu, Gebiremedhin, Fernandez-Rivera S., Mohammed, Hassena, Mwangi W., Seid, Ahmed (2007). Maize and livestock: Their inter-linked roles in meeting human needs in Ethiopia. Research Report.
3. Brunori G., Jiggins J., Gallardo R., Schmidt O. (2008). New Challenges for Agricultural Research: Climate Change, Food Security, Rural Development, Agricultural Knowledge Systems. The Second SCAR Foresight Exercise, Synthesis Report: EU Commission Standing Committee on Agricultural Research (SCAR).
4. Butkeviciene, E. (2009). Social Innovations in Rural Communities: Methodological Framework and Empirical Evidence. Social Sciences 1(63):80–88.
5. Byenkya, G. S. (2004). Impact of undesirable plant communities on the carrying capacity and livestock performance in pastoral systems of south-western Uganda (Doctoral dissertation, Texas A&M University).