Putri Nur Hidayah. “THE USE OF UN/MARKED CODE TO SHOW POLITENESS AMONG MULTILINGUAL CUSTOMERS”. Celtic : A Journal of Culture, English Language Teaching, Literature and Linguistics 8, no. 2 (December 15, 2021): 177–189. Accessed October 20, 2024. https://ejournal.umm.ac.id/index.php/celtic/article/view/16692.