Ebrahimi, Fazel Hajizadeh, and Dinh Tran Ngoc Huy. “Tax Rates Effects on the Risk Level of Listed Viet Nam Construction Material Firms During Global Economic Crisis 2007-2009”. International Academic Journal of Science and Engineering 5, no. 1 (June 1, 2018): 34–48. Accessed September 24, 2026. https://iaiest.com/iaj/index.php/IAJSE/article/view/IAJSE1810004.