อินทรผดุง อนันตกุล. “Development of Ceramic Clay Map Web Service in Thailand by Applying GIS”. Recent Science and Technology 15, no. 1 (April 29, 2023): 152–164. accessed September 17, 2026. https://li01.tci-thaijo.org/index.php/rmutsvrj/article/view/250049.