Barirohmah, Barirohmah, and Subiyantoro Subiyantoro. “ISO 9001:2008 Quality Management System In Education”. Nazhruna: Jurnal Pendidikan Islam 4, no. 2 (July 25, 2021): 353-361. Accessed April 29, 2026. https://e-journal.uac.ac.id/index.php/NAZHRUNA/article/view/1485.