Khoklang, N., and Y. Srithep. “Preparation of Epoxidized Soybean Oil for Use as Bio-based Epoxy for Coating Application”. KKU Science Journal, vol. 50, no. 1, Nov. 2022, pp. 1-12, https://ph01.tci-thaijo.org/index.php/KKUSciJ/article/view/250289.