Purba A, Benarita, Alpriani Yolanda. An Analysis Of Grammatical Error In Writing Narrative Text At XI Grade Students Of SMA Negeri 5 Pematang Siantar. JBL [Internet]. 2024 Apr. 30 [cited 2024 Jul. 22];6(1):56 -. Available from: https://jurnal.usi.ac.id/index.php/bilingual/article/view/1219