Smartphone Usage Predicting Learning Concentration among Muslim High School Students. Jurnal Qiroah, [S. l.], v. 16, n. 1, p. 107–117, 2026. DOI: 10.33511/qiroah.v16n1.107-117. Disponível em: https://ejurnal.iiq.ac.id/index.php/qiroah/article/view/4699. Acesso em: 21 oct. 2026.