S, A.; SIDABUTAR, U. .; SIAHAAN, S. T. Textual Function on the Vocational High Student’s Textbook: A Systemic Functional Linguistics Approach. Jurnal Kajian Ilmu Pendidikan (JKIP), [S. l.], v. 6, n. 2, p. 449-456, 2025. DOI: 10.55583/jkip.v6i2.1360. Disponível em: https://journal.al-matani.com/index.php/jkip/article/view/1360. Acesso em: 27 jul. 2025.