Sahan, Anselmus, Yasintus Bria, Emanuel Ulu, Syahdan Syahdan, Mustasyfa Kariadi, Dian Prasetyanti, and Dian Prasetyanti. 2023. “LINGUISTIC CATEGORY AND GRAMMATICAL ERRORS ON SMA STUDENTS’ SPEAKING PERFORMANCE”. Jurnal Edulanguage 9 (1), 13-25. https://doi.org/10.32938/edulanguage.9.1.2023.13-25.