WASET
    Chein-Shung Hwang and  Ruei-Siang Fong,  A Hybrid Recommender System based on Collaborative Filtering and Cloud Model.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    March 2011, vol. 51(3). 252 - 257
    [viewed 28 March 2024]. Available from: https://publications.waset.org/pdf/7682.