Abebaw S (2003). Dimensions and Determinants of Food Security among Rural Households in Eastern Ethiopia. A Master Thesis presented to the school of graduate studies of Alemaya University. 152 p.

Almaz G (2008). Adoption of Chickpea Technology Package in Add`a and Akaki Districts, Eastern shewa, Ethiopia. An M.Sc.Thesis, Haramaya University, Ethiopia.

Amemiya T (1981). Qualitative Response Models: A survey. J. Econ. Lit. 19:483-536

Bayissa G (2010). Adoption of Improved Sesame Varieties in Meisso District, West Hararghe Zone. An M.Sc.Thesis, Haramaya University, Ethiopia, 108p.

Birhanu B (2002). Analysis of Factors Affecting the Adoption of Cross-bred dairy Cows in Central High lands of Ethiopia. The Case of Degam and Girar Jarso Districts, North Shoa Zone, Ethiopia. An M.Sc.Thesis, Alemaya University, Ethiopia

Central Statistics Authority (CSA) (2013). The Federal Democratic Republic of Ethiopia Agriculture in Figures. Addis ababa.

Central Intelligence Agency (CIA) (2010). The Adoption of Agricultural Technologies. Mexico, D.F. CIMMYT.

Damodar NG (2003). Basic Econometrics, 4th edition, McGraw-Hill Higher Education, NewYork, 1002 p.

Degnet A, Belay K (2001). 'Factors influencing adoption of high yielding maize varieties in South West Ethiopia: An Application of Logit Analysis', Quarterly Journal of International Agriculture. 2:149-167.

Dereje H (2006). Assessment of Farmers' Evaluation Criteria and Adoption of Improved Bread Wheat Varieties in Akaki, Central Ethiopia. An M.Sc.Thesis, Haramaya University, Ethiopia.

Feder G, Just RE, Zilberman D (1985). "Adoption of agricultural innovations in developing countries: A Survey". Econ. Dev. Cult. Chang. 33:255-98.
Crossref

Green HW (1991). Economic Analysis. New York University, Macmillan Publishing Company, New York.783p.

Gujarati DN (1995). Basic Econometrics, 3rd Edition, McGraw-Hill, Inc, New York. 838p.

Healy PM (1985). The Effect of Bonus Schemes on Accounting Decisions. J. Account. Econ. 8(1-3):85-107.
Crossref

Kidane G (2001). Factors Influencing the Adoption of New Wheat and Maize Varieties in Tigray, Ethiopia: The Case of Hawzien District. An M.Sc, Alemaya University, Ethiopia, 140p.

Legesse D (1992). Analysis of Factors Influencing Adoption and the Impact of Wheat and Maize Technologies In Aris Nagele,Ethiopia. An M.Sc. Thesis, Alemaya University, Ethiopia, 119p.

Lelisa C (1998). Determinants of Adoption And Intensity and Prfitabilty of Fertilizer Use. The Case of Ejere District. An M. Sc. Thesis, Addis Ababa University, Ethiopia, 75 p.

Liao TF (1994). Interpreting Probability Models: Logit, Probit and other Generalized Models. Sage University Paper series on Quantitative Application in the Social Sciences, California, 87 p.
Crossref

Maddala GS (1983). Limited Dependent and Qualitative Variables in Econometrics. Cambridge University Press, Cambridge, MA 401p.
Crossref

Maddala GS (1992). Introduction to Econometrics. 2nd Edition. Macmillan Publishing Company, New York, 631 p.

Melaku G (2005). Adoption and Profitability of Kenyan Top Bar Hive Beekeeping Technology. Study in Ambasel District of Ethiopia. An M.Sc. Thesis, Haramaya University. Ethiopia.

Mesfin A (2005). Analysis of Factors Influencing Adoption of Triticale (X-Triticosecale Witmack) and Impact, the Case of Farta District. An M.Sc Thesis, Alemaya University, Ethiopia 112 p.

Ministry of Agriculture (MOA) (2011). Animal and Plant Health Regulatory Directorate Crop Variety Register. Addis Ababa.

Pindyck RS, Rubinfeld DL (1981). Econometric Models and Economic Forecasts. 2nd Edition, McGraw Hill Book Co. New York, 627 p.

Tesfaye Z, Girma T, Tanner D, Verkuijl H, Aklilu A, Mwangi W (2001). Adoption of Improved Bread Wheat Varieties and Inorganic Fertilizer by Small Scale Farmers in Yelma Dansa and Farta Districts of Northern Ethiopia. Mexico, D.F. Ethiopian Agricultural Research Organization (EARO) and International Maize and Wheat Improvement Center (CIMMYT), 42 p.

World Bank (WDB) (2013). Development indicators, URL, 

View accessed on 10 July, 2014.

Yishak G (2005). Determinants of Adoption of Improved Maize Technology in Damot Gale District, Wolaita, Ethiopia. An M.Sc Thesis, Haremaya University, Ethiopia.