Haji J (2007). “Production Efficiency of Smallholders’ Vegetable-Dominated Mixed Farming System in Eastern Ethiopia: A Non-Parametric Approach.” J African Economics 16(1): 1-27.

Haji J (2007). “Production Efficiency of Smallholders’ Vegetable-Dominated Mixed Farming System in Eastern Ethiopia: A Non-Parametric Approach.” J African Economics 16(1): 1-27.

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