Anusha K, Nachiyappan S, Pradeep K V. “Intelligent Authentication and Indoor Mobile Navigation System for Visually Disabled”. International Journal of Advanced Science and Technology 29, no. 7s (April 20, 2020): 1363 - 1374. Accessed July 18, 2024. http://sersc.org/journals/index.php/IJAST/article/view/10709.