Ruangsri, Waraporn, and Kriangsak Chetpatanavanich. 2018. “The Dynamics of the Cross-Border Trades and the Trades and the Traders of Northwestern Thailand, 1950s to 2010s”. ASIAN REVIEW 31 (2):75-94. https://so01.tci-thaijo.org/index.php/arv/article/view/224873.