ALI, S. W. Syntactic Tree Diagram: Students’ Problems and the Causes. International Journal of English Linguistics, Literature, and Education (IJELLE), [S. l.], v. 5, n. 1, p. 68–76, 2023. DOI: 10.32585/ijelle.v5i1.3717. Disponível em: https://journal.univetbantara.ac.id/index.php/ijelle/article/view/3717. Acesso em: 23 jun. 2024.