A., Malkawi, Kamaruddin A., Admodisastro N, and Perumal P. “OUTDOOR MOBILITY ASSISTIVE TECHNOLOGIES FOR PEOPLE WITH VISION IMPAIRMENT OR BLINDNESS – A STATE OF THE ART”. International Journal of Advanced Science and Technology 28, no. 2 (September 27, 2019): 244 - 250. Accessed February 23, 2026. http://sersc.org/journals/index.php/IJAST/article/view/485.