ZIA, M. W.; FATIMA, F. Digital library services for visually impaired students: A study of the University of Karachi. Pakistan Journal of Information Management and Libraries, [S. l.], v. 12, p. 42–47, 2011. Disponível em: https://pjiml.pu.edu.pk/jo/index.php/pjiml/article/view/137. Acesso em: 10 jan. 2025.