Haag S, PV Jaska and JH Semple (1992). “Assessing the Relative Efficiency of Agricultural Production Units.” Appl Econ 24(5): 559-565.

Haag S, PV Jaska and JH Semple (1992). “Assessing the Relative Efficiency of Agricultural Production Units.” Appl Econ 24(5): 559-565.

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