Yunus, R., & Putri, R. (2022). ANALYSIS OF TESTING APPLICATIONS FOR LEARNING POLITENESS IN LANGUAGE FOR DIGITAL LEARNING THERAPY ON STUDENTS OF SMK N 7 MEDAN. Proceeding International Conference Of Science Technology And Social Humanities, 1, 52-58. Retrieved from https://jurnal.pancabudi.ac.id/index.php/icesshi/article/view/4379