Giokas D (1997). “Use of Goal Programming and Data Envelopment Analysis for Estimating Efficient Marginal Costs of Outputs.” JORS 48(3): 319-323.

Giokas D (1997). “Use of Goal Programming and Data Envelopment Analysis for Estimating Efficient Marginal Costs of Outputs.” JORS 48(3): 319-323.

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