HALLIDAY, M.A.K. On Explanation in Systemic Functional Theory. Linguistics and the Human Sciences, [S. l.], v. 10, n. 1, p. 13–27, 2015. DOI: 10.1558/lhs.v10i1.27274. Disponível em: https://journal.equinoxpub.com/LHS/article/view/12776.. Acesso em: 17 sep. 2024.