Murphy DJ, JN Pearson and SP Siferd (1996). “Evaluating Performance of the Purchasing Department Using Data Envelopment Analysis.” J Business Logistics 17(2): 77-91.
Murphy DJ, JN Pearson and SP Siferd (1996). “Evaluating Performance of the Purchasing Department Using Data Envelopment Analysis.” J Business Logistics 17(2): 77-91.