Andrian, Yusuf, and Rusman Rusman. “Implementasi Pembelajaran Abad 21 Dalam Kurikulum 2013”. Jurnal Penelitian Ilmu Pendidikan 12, no. 1 (April 25, 2019): 14–23. Accessed May 14, 2025. https://jurnal.uny.ac.id/index.php/jpip/article/view/20116.