PRABNARONG, P., and S. THONGKAO. “Land Use Changes in Pak Panang Bay Using Arial Photographs and Geographic Information System”. Walailak Journal of Science and Technology (WJST), vol. 3, no. 1, Nov. 2011, pp. 93-104, https://wjst.wu.ac.th/index.php/wjst/article/view/152.