Sumbayak, Lasni, and Jamaluddin Nasution. “AN ANALYSIS OF TEACHERS’ LANGUAGE POLITENESS DURING TEACHING ENGLISH”. Jurnal Bahasa Indonesia Prima (BIP) 4, no. 1 (April 27, 2022): 215-225. Accessed May 20, 2024. http://jurnal.unprimdn.ac.id/index.php/BIP/article/view/2613.