Nafi’atul Maftukhah, Asrowi Ardi Sulistyo, and Revita Galuh Maharani. “Biaya Mutu (Quality Cost) Di Lembaga Pendidikan Islam: QUALITY COST”. Jurnal Idaaratul ’Ulum (Jurnal Manajemen Pendidikan Islam) 8, no. 1 (June 24, 2026): 1–14. Accessed October 2, 2026. https://jurnal.insanprimamu.ac.id/index.php/idaarotul/article/view/537.