WASET
    Kyoung-jae Kim,  Customer Need Type Classification Model using Data Mining Techniques for Recommender Systems.   journal   = {International Journal of Economics and Management Engineering}, [online]. World Academy of Science, Engineering and Technology.
    August 2011, vol. 56(8). 973 - 978
    [viewed 21 September 2024]. Available from: https://publications.waset.org/pdf/5197.