A.Nagoor Gani and  J.Malarvizhi,  Isomorphism on Fuzzy Graphs.   journal   = {International Journal of Mathematical and Computational Sciences}, [online]. World Academy of Science, Engineering and Technology.
    November 2008, vol. 23(11). 825 - 831
    [viewed 19 April 2024]. Available from: https://publications.waset.org/pdf/5626.