WASET
    Cheng-Che Tsai and  Huang-Ming Chuang,  The Role of Cognitive Decision Effort in Electronic Commerce Recommendation System.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    October 2011, vol. 58(10). 1087 - 1091
    [viewed 20 April 2024]. Available from: https://publications.waset.org/pdf/12328.