Musmuliadi, Musmuliadi, Januarius Mujiyanto, and Djoko Sutopo. “The Realization of Teachers’ Code Switching in Instructional Process.”. English Education Journal 8, no. 4 (September 13, 2018): 432-438. Accessed January 7, 2025. https://journal.unnes.ac.id/sju/eej/article/view/25324.