Ruminar, Hafida. “GRAMMATICAL ERRORS IN ESP STUDENTS’ PRESENTATION ACROSS PROFICIENCY LEVELS”. EnJourMe (English Journal of Merdeka) : Culture, Language, and Teaching of English 3, no. 1 (July 31, 2018): 15–22. Accessed January 30, 2025. https://jurnal.unmer.ac.id/index.php/enjourme/article/view/2152.