Napitupulu, L. H., Girsang, D. S. ., Nainggolan, Y. M., Sinambela, C. . and Sinaga, G. H. . (2023) “ANALYSIS OF GRAMMATICAL ERRORS IN THE ESSAY WRITING OF EIGHTH-GRADE STUDENTS AT PANCA BUDI MEDAN”, ELT (English Language Teaching Prima Journal), 5(1), pp. 87 -103. doi: 10.34012/elt.v5i1.3884.