Yungchien Cheng and  Chienmin Chu,  The Study of using Public Participation Geographic Information System in Indigenous Mapping.   journal   = {International Journal of Civil and Architectural Engineering}, [online]. World Academy of Science, Engineering and Technology.
    March 2012, vol. 63(3). 410 - 412
    [viewed 19 April 2024]. Available from: https://publications.waset.org/pdf/1098.