Siagian, C., & Pinem, S. (2020). PROBLEMS TO SPEAKING ENGLISH OF ENGLISH DEPARTMENT STUDENTS AT UNIVERSITY OF DARMA AGUNG MEDAN. JURNAL LITTERA: FAKULTAS SASTRA DARMA AGUNG, 1(1), 1 - 8. Retrieved from https://jurnal.darmaagung.ac.id/index.php/littera/article/view/548