Widyaningrum HK, Pratiwi CP, Menggala AD, Hasanudin C, Fitrianingsih A. Android Application Appy pie to support Students Writing Stories Skill Through Flipped Classroom Learning Models. Int. J. Adv. Sci. Eng. Inf. Technol. [Internet]. 2022 Apr. 5 [cited 2024 Jul. 3];12(2):530-8. Available from: https://ijaseit.insightsociety.org/index.php/ijaseit/article/view/12719