Naibaho, Lamhot. “THE INTEGRATION OF GROUP DISCUSSION METHOD USING AUDIO VISUAL LEARNING MEDIA TOWARD STUDENTS’ LEARNING ACHIEVEMENT ON LISTENING”. International Journal of Research -GRANTHAALAYAH 7, no. 8 (August 31, 2019): 438–445. Accessed April 26, 2024. https://www.granthaalayahpublication.org/journals/granthaalayah/article/view/IJRG19_A09_2658.