Pratiwi DA, Wijayati PH, Usman R. The Development of Digital Flipbook as German Language Learning for Senior High School Class XI. Rand. Inter. Edu. Ling. Sci. J. [Internet]. 2023Mar.30 [cited 2026Apr.30];4(1):48-7. Available from: https://www.randwickresearch.com/index.php/rielsj/article/view/602