Wong EJ, Yap KM, Alexander J, Karnik A. Design and Analysis of Haptic-Audio Based System for the Visually Impaired to Shop Online. JTEC [Internet]. 2017Jun.1 [cited 2024Jul.3];9(2-2):159-63. Available from: https://jtec.utem.edu.my/jtec/article/view/2237