WASET
    Xiuqin Ma and  Hongwu Qin,  Application of a New Efficient Normal Parameter Reduction Algorithm of Soft Sets in Online Shopping.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    July 2014, vol. 91(7). 1174 - 1176
    [viewed 09 May 2024]. Available from: https://publications.waset.org/pdf/9998831.