UNING HERI GAGARIN; YENI TRISNA PURBA; FRANS FAVO PURBA S. PENGEMBANGAN SISTEM PENJAMINAN MUTU LAYANAN PENDIDIKAN DASAR–MENENGAH MELALUI AUDIT INTERNAL DAN PELATIHAN KARYAWAN. Nusantara Hasana Journal, [S. l.], v. 5, n. 3, p. 604–609, 2025. DOI: 10.59003/nhj.v5i3.2002. Disponível em: https://nusantarahasanajournal.com/index.php/nhj/article/view/2002. Acesso em: 15 may. 2026.