Ningwati, Hesty Yanti, Pardimin Pardimin, and Zainnur Wijayanto. “Pengembangan Strategi Interaksi Model Pembelajaran Flipped Classroom Pada Sekolah Menengah Pertama”. Union: Jurnal Ilmiah Pendidikan Matematika 9, no. 3 (November 30, 2021): 317–328. Accessed October 2, 2023. https://jurnal.ustjogja.ac.id/index.php/union/article/view/9492.