Zhi Ting, W. , Binti Mohd Esa, N.A. , Hui Yuen, C. , Vajravelu , A. and Abd Wahab, M.H. 2021. AN INITIAL STEP TO DESIGN IN AIDING EQUIPMENT FOR BLIND USING ULTRASONIC SYSTEM. International Journal of Advanced Computer Systems and Software Engineering. 2, 3 (Jul. 2021), 30–34.