An Analysis Of Authentic Materials In Textbook Entitled Bahasa Inggris Work In Progress. Conference on English Language Teaching, [S. l.], p. 303–314, 2025. DOI: 10.24090/celti.2025.1315. Disponível em: https://proceedings.uinsaizu.ac.id/index.php/celti/article/view/1315. Acesso em: 13 jul. 2026.