Ahmadi, F., Mulyono, S. E., Al-Ghamdi, B. A. A.-R., & Harjunowibowo, D. (2020). Comparative Study of the Development of Android-Based Flipped Classroom Model between Jeddah and Indonesia. International Journal on Advanced Science, Engineering and Information Technology, 10(2), 542–547. https://doi.org/10.18517/ijaseit.10.2.11447