Systematic Functional Linguistic (SFL) Theory-Based Approach in Improving English Text Writing Skills of Students at SMK YAPIM Biru-Biru. JURNAL PENGMAS KESTRA (JPK), [S. l.], v. 5, n. 2, p. 414–421, 2025. DOI: 10.35451/hdaxqh48. Disponível em: https://ejournal.medistra.ac.id/index.php/JPK/article/view/3007. Acesso em: 6 jan. 2026.