KOU, Kai. Research on the Improvement of Hainan International Study Travel Destination Competitiveness Based on RCEP and Free Trade Port Policy. Education Insights, SOAP, U.K., v. 2, n. 10, p. 299–305, 2025. DOI: 10.70088/jqbpwk91. Disponível em: http://soapubs.com/index.php/EI/article/view/1424.. Acesso em: 7 mar. 2026.