SITUMORANG, Komilie. Improving the Academic English Achievement through Developing Students’ Self-Efficacy of Verbal Persuasions; A Classroom Action Research. Journal of Languages and Language Teaching, [S. l.], v. 10, n. 3, p. 403–413, 2022. DOI: 10.33394/jollt.v10i3.5534. Disponível em: https://e-journal3.undikma.ac.id/index.php/jollt/article/view/5534. Acesso em: 15 aug. 2025.