Wulandari S, Kusumaningrum SR, Dewi RSI. USING FLIPBOOK TO ENHANCE THE STUDENTS PERFORMANCE IN SPEAKING. SJRI [Internet]. 2022 Dec. 12 [cited 2024 Nov. 23];1(4):1151-7. Available from: https://ejournal.nusantaraglobal.or.id/index.php/sentri/article/view/365