Ranjan Rai, Prabhat, Yash Gupta, and Shubhangi Pandey. “A Learning and Helping Virtual Reality App Using Voice Frequency”. Asian Journal For Convergence In Technology (AJCT) ISSN -2350-1146 7, no. 2 (August 19, 2021): 65-69. Accessed October 9, 2025. http://asianssr.org/index.php/ajct/article/view/1135.