WIDYA, Siska Okta; WAHYUNI, Irna. The Correlation Between Grammar Mastery and Writing Thesis Proposal at STKIP YDB Lubuk Alung. Jurnal Arbitrer, [S. l.], v. 5, n. 2, p. 75–80, 2018. DOI: 10.25077/ar.5.2.75-80.2018. Disponível em: https://arbitrer.fib.unand.ac.id/index.php/arbitrer/article/view/114. Acesso em: 19 mar. 2026.