Sengupta JK (1987). “Production Frontier Estimation to Measure Efficiency: A Critical Evaluation in Light of Data Envelopment Analysis.” Managerial and Decision Economics 8(2): 93-99.

Sengupta JK (1987). “Production Frontier Estimation to Measure Efficiency: A Critical Evaluation in Light of Data Envelopment Analysis.” Managerial and Decision Economics 8(2): 93-99.

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