Wijayanti FI, Dewi FAI, Safitri L, Fatimah F. How do English for Nusantara textbooks represent identity and politeness to develop students’ sociolinguistic competence?. Diglosia [Internet]. 2026Feb.25 [cited 2026Apr.15];9(1):133-48. Available from: https://diglosiaunmul.com/index.php/diglosia/article/view/1446