Pengaruh Intensitas Penggunakan Smartphone terhadap Kedisiplinan Siswa Kelas 5 SD Muhammaddiyah Birrulwalidain. Jurnal Cahaya Edukasi, [S. l.], v. 2, n. 3, p. 61–65, 2025. DOI: 10.63863/jce.v3i3.120. Disponível em: http://jurnalcahayaedukasi.com/index.php/jce/article/view/120. Acesso em: 21 apr. 2026.