Togatorop F. Politeness Strategies Used in the Conversation between the Students of Finance and Banking Department in Murni Sadar Polytehnic Pematangsiantar. JETAFL [Internet]. 2019Jun.30 [cited 2024May19];5(1):37-48. Available from: https://ejournal.uhn.ac.id/index.php/jetafl/article/view/115