Wijayanti, F. I., Dewi, F. A. I., Safitri, L., & Fatimah, F. (2026). How do English for Nusantara textbooks represent identity and politeness to develop students’ sociolinguistic competence?. Diglosia: Jurnal Kajian Bahasa, Sastra, Dan Pengajarannya, 9(1), 133-148. https://doi.org/10.30872/diglosia.v9i1.1446