Guo P and H Tanaka (1999). “Efficiency Evaluation Models Via Fuzzy Linear Programming Problems.? in Proceedings of the Eighth International Fuzzy Systems Association World Congress, Nat. Central Univ. 1: 505-509.
Guo P and H Tanaka (1999). “Efficiency Evaluation Models Via Fuzzy Linear Programming Problems.? in Proceedings of the Eighth International Fuzzy Systems Association World Congress, Nat. Central Univ. 1: 505-509.