WASET
    Amit Kumar and  Pushpinder Singh and  Parampreet Kaur and  Amarpreet Kaur,  A New Approach For Ranking Of Generalized Trapezoidal Fuzzy Numbers.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    August 2010, vol. 44(8). 1217 - 1220
    [viewed 19 April 2024]. Available from: https://publications.waset.org/pdf/14411.