Arif, Muchamad Arif Kurniawan, Willa Putri, and Krisna Ardawinata. “Principal Policy in Improving the Quality of Education MAN 1 Yogyakarta”. al-Afkar, Journal For Islamic Studies 6, no. 3 (May 23, 2023): 816–825. Accessed February 4, 2025. https://mail.al-afkar.com/index.php/Afkar_Journal/article/view/606.