WASET
    Hyunchul Ahn and  Kyoung-Jae Kim,  Corporate Credit Rating using Multiclass Classification Models with order Information.   journal   = {International Journal of Economics and Management Engineering}, [online]. World Academy of Science, Engineering and Technology.
    December 2011, vol. 60(12). 1783 - 1788
    [viewed 27 April 2024]. Available from: https://publications.waset.org/pdf/3571.