ZAHIDIN AINUR ROSYID, H., & MADLAZIM. (2019). DEVELOPMENT OF FLIPPED CLASSROOM LEARNING INSTRUMENT AS INNOVATIVE LEARNING WHICH INTEGRATED TO YOUTUBE VIDEO TO IMPROVE STUDENT LEARNING ACHIEVEMENT. IPF: Inovasi Pendidikan Fisika, 8(1). Retrieved from https://ejournal.unesa.ac.id/index.php/inovasi-pendidikan-fisika/article/view/26632