WASET
    Kwok Tak Kit,  Revolution of IoT Development in Smartest City: Review of Smart City Development in Singapore and Hong Kong.   journal   = {International Journal of Architectural and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    May 2022, vol. 185(5). 138 - 141
    [viewed 19 April 2024]. Available from: https://publications.waset.org/pdf/10012530.