WASET
    C. Ardil,  Aircraft Supplier Selection using Multiple Criteria Group Decision Making Process with Proximity Measure Method for Determinate Fuzzy Set Ranking Analysis.   journal   = {International Journal of Industrial and Systems Engineering}, [online]. World Academy of Science, Engineering and Technology.
    April 2023, vol. 195(3). 127 - 135
    [viewed 19 September 2024]. Available from: https://publications.waset.org/pdf/10013041.