Silkman RH (1986). “Editor’s Notes: New Directions for Program Evaluation.” in Silkman RH (eds.) Measuring Efficiency: An Assessment of Data Envelopment Analysis, American Evaluation Association, Jossey Bass, Inc.
Silkman RH (1986). “Editor’s Notes: New Directions for Program Evaluation.” in Silkman RH (eds.) Measuring Efficiency: An Assessment of Data Envelopment Analysis, American Evaluation Association, Jossey Bass, Inc.