Shetty, R. C., R. M, R. G, and L. Trupthi. “Navigation System Based on Passive RFID Transponder for Visually Impaired People”. Perspectives in Communication, Embedded-Systems and Signal-Processing - PiCES, vol. 3, no. 2, July 2019, pp. 33-35, http://pices-journal.com/ojs/index.php/pices/article/view/186.