Kunchit Pirapake,  Application of Geo-Informatic Technology in Studying of Land Tenure and Land Use for Cultivation of Cash Crops by Local Communities in the Local Administration Organizations of Phailuang and Maepoon in Lublae District, Uttaradit Province.   journal   = {International Journal of Humanities and Social Sciences}, [online]. World Academy of Science, Engineering and Technology.
    March 2013, vol. 75(3). 639 - 642
    [viewed 25 September 2020]. Available from: https://publications.waset.org/pdf/1526.