Yarungsee, A., and D. . Lerskullawat. “Factors Affecting the Sugar Export from Thai to ASEAN Countries”. KKU Research Journal (Graduate Studies) Humanities and Social Sciences, vol. 11, no. 3, Dec. 2023, pp. 82-98, https://so04.tci-thaijo.org/index.php/gskkuhs/article/view/264340.