boontanang, wanlop, and Jaggapan Cadchumsang. “The Capitals of Border Petty Traders at the Checkpoint for Border Trade on Thailand-Laos Border”. Journal of Multidisciplinary in Humanities and Social Sciences 6, no. 2 (April 19, 2023): 643–662. accessed October 4, 2026. https://so04.tci-thaijo.org/index.php/jmhs1_s/article/view/262678.