DONG, Jia. Research on Economic Policy Uncertainty and Import Trade. Frontiers in Business, Economics and Management, [S. l.], v. 7, n. 1, p. 235–238, 2023. DOI: 10.54097/fbem.v7i1.4176. Disponível em: https://drpress.org/ojs/index.php/fbem/article/view/4176. Acesso em: 19 may. 2026.