TRUNG, N. D. ., D. T. N. . HUY, N. T. . THUY, L. N. . NUONG, and L. D. . HAC. “Measuring Beta Capm In 2 Economic Stages Of Commercial Banks In Vietnam Economy – Case Of Vietcombank And Vietinbank”. The Journal of Contemporary Issues in Business and Government, vol. 27, no. 2, Apr. 2021, pp. 795-9, https://cibgp.com/au/index.php/1323-6903/article/view/989.