Agerie N (2013). Determinants of Smallholder Rural Farm Households' Participation in Small Scale Irrigation and Its Effect on Income in North Gondar Zone: A Cross- Sectional Approach (Evidence from Dembia Woreda). Department of Economics, College of Business and Economics, Mekelle University, Mekele Ethiopia.

Ali AA (2003). Sample Size Determination Influencing Factors and Calculation Strategies for Survey Research. Institute of Public Administration, Kingdom of Saudi Arabia. Saudi Med. J. 8(2):83.

Girma MM, Awulachew SB (2007). Irrigation practices in Ethiopia: Characteristics of selected irrigation schemes. Colombo, Sri Lanka: International Water Management Institute. 80 p. (IWMI Working Paper 124).

Glenn DI (2013). Determining Sample Size, Document, Program Evaluation and Organizational Development. Institute of Food and Agricultural Sciences: University of Florida, Gainesville, FL 32611, USA. P 3.

Kinfe A (2012). Irrigation versus rain-fed agriculture: Driving for households' income disparity. Ethiop. Agric. S.R.J. 2(1):27–28.

Kothari CR (2004). Research Methodology, Methods and Techniques. 2nd ed. New Age International: University of Rajasthan, Jaipur, P 418.

Ministry of Agriculture (MoA) (2011). Small-Scale Irrigation Capacity Building Strategy for Ethiopia. Natural Resources Management Directorate through the support of GIZ. MOA, Natural resource sector, Sustainable Land Management Program, Addis Ababa, Ethiopia. pp. 5-7.

Ministry of Finance and Economic Development (MOFED) (2010). The Federal Democratic Republic of Ethiopia, Growth and Transformation Plan (GTP) 2010/11-2014/15.GTP Draft. September 2010, Addis Ababa, Ethiopia.