Liu D-w, G-q Xiong and W-j Diao (2004). “The Comprehensive Evaluation of Economic Returns of Hi-Tech Development Zone Using DEA Method in China.” J Xi’an University of Technology 20(1): 105-108.

Liu D-w, G-q Xiong and W-j Diao (2004). “The Comprehensive Evaluation of Economic Returns of Hi-Tech Development Zone Using DEA Method in China.” J Xi’an University of Technology 20(1): 105-108.

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