Jongwattanakul, Pit. “The Trade Enhancing Effect of the Free Trade Agreement and Tariff Margin : Evidence from Thailand”. Thailand and The World Economy 32, no. 2 (August 22, 2014): 23–48. Accessed May 17, 2024. https://so05.tci-thaijo.org/index.php/TER/article/view/137255.