GRAMMATICAL ERRORS IN UNDERGRADUATE STUDENTS’ RESEARCH PROPOSAL WRITING. Jurnal Bahasa Lingua Scientia, [S. l.], v. 11, n. 2, p. 291–308, 2019. DOI: 10.21274/ls.2019.11.2.291-308. Disponível em: https://ejournal.uinsatu.ac.id/index.php/ls/article/view/1854. Acesso em: 24 jan. 2026.