Nababan, R. (2021) “An ANALYSIS OF GRAMMATICAL ERRORS IN WRITING NARRATIVE TEXT B: AN ANALYSIS OF GRAMMATICAL ERRORS IN WRITING NARRATIVE TEXT BY STUDENTS GRADE EIGHT AT SMP SWASTA VALENTINE DELI SERDANG”, ELT (English Language Teaching Prima Journal), 3(1), pp. 1–15. doi: 10.34012/elt.v%vi%i.1731.