Hafizah Che Hasan and  Fateen Nazwa Yusof and  Maslina Daud,  Comparison of Authentication Methods in Internet of Things Technology.   journal   = {International Journal of Computer and Systems Engineering}, [online]. World Academy of Science, Engineering and Technology.
    May 2018, vol. 135(3). 231 - 234
    [viewed 16 October 2019]. Available from: https://publications.waset.org/pdf/10009096.