Chien-Ta H and KH Tan (2004). “Measuring Operational Efficiency: An Approach Based on the Data Envelopment Analysis.” Int J Management and Enterprise Development 1(2): 120-135.

Chien-Ta H and KH Tan (2004). “Measuring Operational Efficiency: An Approach Based on the Data Envelopment Analysis.” Int J Management and Enterprise Development 1(2): 120-135.

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