WASET
    F. Habib and  A. Shokoohi,  Classification and Resolving Urban Problems by Means of Fuzzy Approach.   journal   = {International Journal of Civil and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    December 2009, vol. 36(12). 501 - 508
    [viewed 19 April 2024]. Available from: https://publications.waset.org/pdf/15625.