NGUYEN, Ha Hong. “Survey and Assessment of Covid-19 Pandemic on the Economy of Tra Vinh Province, Viet Nam and Policy Implications”. Advances in Social Sciences Research Journal 8, no. 9 (September 9, 2021): 42–49. Accessed November 23, 2024. http://116.203.177.230/index.php/ASSRJ/article/view/10655.