Yanti PG. IMPROVING THE DEBATE ABILITY THROUGH INQUIRY METHOD AND AUDIO VISUAL LEARNING MEDIA IN COURSE OF SPEAKING SKILL (Lesson Study Results). Bahtera [Internet]. 2018Jul.14 [cited 2024May19];17(2):82-113. Available from: https://journal.unj.ac.id/unj/index.php/bahtera/article/view/7628