참고문헌
- A. Kaufmann and M.M. Gupta, Introduction To Fuzzy Arithmetic: Theory and Applications, Van Nostrand Reinhold Co., New York, 1985.
- Y.S. Yun, S.U. Ryu and J.W. Park, ”The generalized triangular fuzzy sets,” Journal of the Chungcheong Mathematical Society, vol. 22, no. 2, pp. 161-170, 2009.
- H.J. Zimmermann, Fuzzy set Theory-and Its Applications, Kluwer-Nijhoff Publishing, Boston-Dordrecht-Lancaster, 1985.