MATANARI, Desna Uli; SINAR, Tengku Silvana; PRADINDA, Yulia; TARIGAN, Abigail Putri Chrissantha; HASAN, Hani Firlyali. An Analysis of Comparison on Observation Permission Letters in Selected Departments at USU: A Critical Genre Analysis. Lexeme : Journal of Linguistics and Applied Linguistics, [S. l.], v. 7, n. 1, p. 143–152, 2025. DOI: 10.32493/ljlal.v7i1.46320. Disponível em: https://openjournal.unpam.ac.id/index.php/LJLAL/article/view/46320. Acesso em: 5 feb. 2025.