Asty, H, E Kemal, Siska ., and Afdaleni . “Design and Development Stage of Interactive CD-Based Audio Visual Media Development for Improving the Listening Skill on Listening Subject in STKIP PGRI West Sumatera”. KnE Social Sciences 3, no. 14 (March 31, 2019): 332–339. Accessed May 3, 2024. https://knepublishing.com/index.php/KnE-Social/article/view/4319.