SUMARNO. PENGARUH KUALITAS PELAYANAN PENDIDIKAN TERHADAP KEPUASAN ORANG TUA SISWA DI SDI INTEGRAL LUQMAN AL HAKIM BATAM . JURNAL MUMTAZ, [S. l.], v. 1, n. 1, p. 33–43, 2021. Disponível em: http://e-journal.stitmumtaz.ac.id/index.php/mumtaz/article/view/2. Acesso em: 31 jan. 2025.