AHMED, S.; UZAIR, A. The impact of non-accessible library and information science journals on research productivity in Pakistan. Pakistan Journal of Information Management and Libraries, [S. l.], v. 18, n. 2, p. 40–57, 2016. Disponível em: https://pjiml.pu.edu.pk/jo/index.php/pjiml/article/view/73. Acesso em: 9 jan. 2025.