Antara IMAR, Anggreni NPY. ANALYZING GRAMMATICAL ERRORS IN EFL STUDENTS’ OPINION ESSAYS USING DEEPSEEK AI: PATTERNS AND PEDAGOGICAL IMPLICATIONS. stilistika [Internet]. 2025May24 [cited 2025May31];13(2):210-8. Available from: https://ojs.mahadewa.ac.id/index.php/stilistika/article/view/4560