Siti Nurdinah 2024. Analyzing Grammatical Errors in The Undergraduate Thesis of Students of The Department of Arabic Language Education at Sultan Sharif Qasim Islamic State University Riau In 2017. International Journal of Studies in International Education. 1, 3 (Sep. 2024), 74–84. DOI:https://doi.org/10.62951/ijsie.v1i4.53.