Mrs. Ritika Dhabliya. “Obstacle Detection and Text Recognition for Visually Impaired Person Based on Raspberry Pi”. International Journal of New Practices in Management and Engineering 9, no. 02 (June 30, 2020): 01–07. Accessed October 30, 2025. https://www.ijnpme.org/index.php/IJNPME/article/view/83.