Technical efficiency and productivity of maize producers in eastern Ethiopia: a study of farmers within and outside the Sasakawa-Global 2000 project

Seyoum, E.T ; Battese, G.E ; Fleming, E.M

Agricultural economics, 1998-12, Vol.19 (3), p.341-348 [Periódico revisado por pares]

Elsevier B.V

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