ศิริภัทรโสภณ ด. “Competitive Capacity and Readiness of Thai Small and Mediums Enterprises for Entering the ASEAN Economic Community”. Journal of the Association of Researchers, vol. 21, no. 1, June 2020, pp. 9-33, https://so04.tci-thaijo.org/index.php/jar/article/view/243073.