Anas, Aswar. “Analisis Sistem Penjaminan Mutu Internal MTsN 4 Pasaman Barat”. Al-Liqo: Jurnal Pendidikan Islam 7, no. 1 (June 30, 2022): 62–72. Accessed March 29, 2024. https://ejournal.stai-tbh.ac.id/al-liqo/article/view/468.