HIDAYAT, Didin Nuruddin; FITRIYANI, Nur; ALEK, Alek; SEPTIAWAN, Yudi; EVIYULIAWATI, Ismalianing. An Investigation into The Grammatical Errors of Students’ Writing. Eduvelop: Journal of English Education and Development , [S. l.], v. 4, n. 1, p. 9–16, 2020. DOI: 10.31605/eduvelop.v4i1.806. Disponível em: https://ojs.unsulbar.ac.id/index.php/eduvelop/article/view/806. Acesso em: 17 apr. 2026.