Kale, Amit, Harshad N. Lokhande, and Shubham Kandharkar. “COVID-19 Safe Distance Alert System for Blind People”. Journal of Science & Technology 6, no. Special Issue 1 (August 16, 2021): 100–106. Accessed July 3, 2025. https://jst.org.in/index.php/pub/article/view/719.