MAHAMED, N. R. Using Halliday’s Systemic-Functional Theory in Analyzing Barack Obama’s Political Speech of 2012 Electoral Campaign. JOURNAL OF LANGUAGE STUDIES, [S. l.], v. 7, n. 2, p. 322–354, 2023. DOI: 10.25130/lang.7.2.16. Disponível em: https://jls.tu.edu.iq/index.php/jls/article/view/687. Acesso em: 15 oct. 2025.