Anusree, Periasamy C, and Krishnapriya V. “Electronic Travel Aid for Visually Impaired People Along With a Panic Alert System”. International Journal of Computer Communication and Informatics 1, no. 1 (May 30, 2019): 17-21. Accessed January 19, 2022. https://sietjournals.com/index.php/ijcci/article/view/32.