WASET
    M.A. Lazim and  M. Suriani,  Sensory Evaluation of the Selected Coffee Products Using Fuzzy Approach.   journal   = {International Journal of Mathematical and Computational Sciences}, [online]. World Academy of Science, Engineering and Technology.
    February 2009, vol. 26(2). 133 - 136
    [viewed 24 April 2024]. Available from: https://publications.waset.org/pdf/1965.