Enhancing mobile e-book usability for the visually impaired: A novel model validated via the fuzzy delphi method. - Munya Saleh Ba Matraf; Nor Laily Hashim; Azham Hussain; Adib Habbal; Hassen Hamouda; Osman Ghazali (J. King Saud Univ. Comput. Inf. Sci., 2025)