GHOFAR, Abd; DWIANANTO, Gigih; JAUHARI, Iman; ELIZA, Aulia Noor. An Analysis of Politeness Strategies in an English Textbook for University Students. International Journal of Sustainable English Language, Education, and Science, [S. l.], v. 3, n. 1, p. 45–51, 2026. DOI: 10.71131/w9ekwv57. Disponível em: https://ejournal.cwcu.ac.id/index.php/IJSELES/article/view/135.. Acesso em: 10 aug. 2026.