S.Aranganayagi and  K.Thangavel,  Improved K-Modes for Categorical Clustering Using Weighted Dissimilarity Measure.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    March 2009, vol. 27(3). 729 - 735
    [viewed 21 April 2021]. Available from: https://publications.waset.org/pdf/8177.