Janah, W.J. and Betria, I. 2021. AN ANALYSIS OF CODE-SWITCHING IN STUDENTS’ VOICE CHAT AT GRADE XI IN SMAN I BANGUN PURBA. Jurnal Edu Research. 10, 2 (Dec. 2021), 7–14. DOI:https://doi.org/10.30606/jer.v10i2.1169.