Yousef, Rana Mohammad, Omar Adwan, and Murad Abu-Leil. “An Enhanced Mobile Phone Dialler Application for Blind and Visually Impaired People”. International Journal of Engineering and Technology 2, no. 4 (November 14, 2013): 270–280. Accessed May 13, 2025. https://mail.sciencepubco.com/index.php/IJET/article/view/1101.