WASET
    Vincent F. Yu and  Ha Thi Xuan Chi,  Ranking Fuzzy Numbers Based On Epsilon-Deviation Degree.   journal   = {International Journal of Mathematical and Computational Sciences}, [online]. World Academy of Science, Engineering and Technology.
    June 2012, vol. 66(6). 681 - 687
    [viewed 20 April 2024]. Available from: https://publications.waset.org/pdf/13182.