Sandi, Ari, Fitri Nur Mahmudah, and Datuk Muhammad Nasaruddin. “Budaya Sekolah Studi Kasus Di SMA Muhammadiyah Berau”. Jurnal Pendidikan Tambusai 6, no. 2 (August 11, 2022): 16439–16450. Accessed December 29, 2024. http://jptam.org/index.php/jptam/article/view/5093.