HARAHAP, D. S., I. PRAMUNIATI, and . MARICE. “DEVELOPMENT OF LEARNING MEDIA FOR Écrite Intermédiaire COURSE PRODUCTION USING FLIPHTML5”. Journal of Basic and Applied Research International, Vol. 27, no. 3, June 2021, pp. 36-41, https://www.ikprress.org/index.php/JOBARI/article/view/6463.