Lumban Raja, Viator, Jontra Jusat Pangaribuan, and Lisna Naibaho. “Measuring The First-Year Students’ Ability of English Study Program on English Grammar in Academic Year 2023/2024”. Journal of Applied Linguistics 4, no. 2 (January 2, 2025): 226–230. Accessed June 30, 2026. https://journal.eltaorganization.org/index.php/joal/article/view/324.