XU, Han; ZHANG, Duoling; ZHANG, Zhenling. The Impact of Covid-19 on International Trade in China- Industry Review in the YRD and the PRD. Journal of Education, Humanities and Social Sciences, [S. l.], v. 8, p. 1763–1769, 2023. DOI: 10.54097/ehss.v8i.4579. Disponível em: https://drpress.org/ojs/index.php/EHSS/article/view/4579. Acesso em: 13 aug. 2026.