Lee H-S, P-D Shen and W-L Chyr (2005). “A Fuzzy Method for Measuring Efficiency under Fuzzy Environment.? in Lecture Notes in Computer Science, Springer Verlag, Heidelberg, Germany. 3682: 343-349.

Lee H-S, P-D Shen and W-L Chyr (2005). “A Fuzzy Method for Measuring Efficiency under Fuzzy Environment.? in Lecture Notes in Computer Science, Springer Verlag, Heidelberg, Germany. 3682: 343-349.

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