Bangmek, R., A. Yodbutr, and S. Thanjunpong. “Cost of Equity and Disclosure of management’s Responsibility for Financial Reports of Firms in Thailand”. Kasetsart Journal of Social Sciences, vol. 41, no. 2, Sept. 2018, pp. 415–421, https://so04.tci-thaijo.org/index.php/kjss/article/view/232586.