SUMARNO. PENGARUH KUALITAS PELAYANAN PENDIDIKAN TERHADAP KEPUASAN ORANG TUA SISWA DI SDI INTEGRAL LUQMAN AL HAKIM BATAM . MUMTAZ - Education Management and Islamic Studies, [S. l.], v. 1, n. 1, p. 33–43, 2021. Disponível em: http://e-journal.mumtaz.ac.id/index.php/mumtaz/article/view/2. Acesso em: 15 oct. 2025.