SARI, I. F. Politeness Strategies in Indonesian English Textbooks. Lingua Franca, [S. l.], v. 4, n. 2, p. 17–27, 2025. DOI: 10.37680/linguafranca.v4i2.8371. Disponível em: https://ejournal.insuriponorogo.ac.id/index.php/lingua_franca/article/view/8371. Acesso em: 28 nov. 2025.