Omid Jadidi and  Fatemeh Firouzi and  Enzo Bagliery,  TOPSIS Method for Supplier Selection Problem.   journal   = {International Journal of Economics and Management Engineering}, [online]. World Academy of Science, Engineering and Technology.
    November 2010, vol. 47(11). 2198 - 2200
    [viewed 26 January 2020]. Available from: https://publications.waset.org/pdf/10490.