S, Janaki, Aarthi E, Chandiya R, Divya Bharathi J, and Jayashree K. “LIFI Based Voice Transmission for Coal Mine Safety Monitoring and Control Automation”. International Journal of Engineering and Technology 7, no. 4.6 (September 25, 2018): 536–538. Accessed August 17, 2025. https://mail.sciencepubco.com/index.php/IJET/article/view/28923.