FERREIRA, A. Analysis of modifying mechanisms of illocutionary force in opinion texts produced by Chinese students of PFL level B1. Redis: Revista de Estudos do Discurso, [S. l.], n. 9, p. 106–132, 2020. DOI: 10.21747/21833958/red9a4. Disponível em: https://www.ojstest.xyz/ojsletras/index.php/re/article/view/10209. Acesso em: 2 jan. 2026.