Efektifitas Model Flipped Classroom dalam Mata Kuliah Perencanaan Pembelajaran Prodi S1 PGMI UMSIDA: The Effectiveness of the Flipped Classroom Model in the Learning Planning Course of the PGMI UMSIDA S1 Study Program. icecrs. 2018;1(3):picecrs.v1i3.1380. doi:10.21070/picecrs.v1i3.1380