Idana, L. (2021) “AN ANALYSIS OF CODE-SWITCHING USED BY TEACHERS IN TEACHING ENGLISH OF 8TH GRADE STUDENTS IN SMP NEGERI 1 YOGYAKARTA DURING COVID-19 PANDEMIC”, Jurnal Bahasa Lingua Scientia, 13(2), pp. 249-269. doi: 10.21274/ls.2021.13.2.249-269.