Dassa, A. R., B. E. Lemu, J. H. Mohammad, and K. B. Dadi. “Vegetable Production Efficiency of Smallholders’ Farmer in West Shewa Zone of Oromia National Regional State, Ethiopia”. American International Journal of Agricultural Studies, Vol. 2, no. 1, Oct. 2019, pp. 39-51, doi:10.46545/aijas.v2i1.112.