Kobkanjanapued, Y., and P. . Chotkunakitti. “Value Relevance of Book Value, Accounting Earnings and Operating Cash Flows in Explaining Security Prices of Thai Listed Companies During the COVID-19 Situation”. Rajapark Journal, vol. 15, no. 40, May 2021, pp. 79-95, https://so05.tci-thaijo.org/index.php/RJPJ/article/view/250314.