Thitimakorn, Thanop, Suppanut Kummode, and Sasikan Kupongsak. “Determination of Spatial and Temporal Variations of Volumetric Soil Water Content Using Ground Penetrating Radar: A Case Study in Thailand”. Applied Environmental Research 38, no. 2 (July 1, 2016): 33–46. Accessed May 19, 2024. https://ph01.tci-thaijo.org/index.php/aer/article/view/61299.