TRINH, N. T. T.; HOA, P. V.; PHUC, T. H. Halliday’s Functional Grammar: Philosophical Foundation and Epistemology. Journal of English Language and Literature (ISSN: 2368-2132), [S. l.], v. 7, n. 3, p. 536–542, 2017. DOI: 10.17722/jell.v7i3.315. Disponível em: https://techmindresearch.org/index.php/jell/article/view/315. Acesso em: 11 oct. 2025.