WASET
    D. B. L. Bong and  K.C. Lai and  A. Joseph,  Automatic Road Network Recognition and Extraction for Urban Planning.   journal   = {International Journal of Civil and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    May 2009, vol. 29(5). 206 - 212
    [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/3768.