Zia MW, Fatima F. Digital library services for visually impaired students: A study of the University of Karachi. Pak. j. inf. mang. libr. [Internet]. 2011 Dec. 1 [cited 2025 Sep. 6];12:42-7. Available from: https://pjiml.pu.edu.pk/jo/index.php/pjiml/article/view/137