Vishnukumar, A., Dr. A.Nirmal Kumar, J. Velmurugan, P. Pavithra, K. Poornima, and S. Sabareessh. “Coal Mine Workers Safety Helmet in Li-Fi Data Stored in Cloud”. International Journal of Engineering and Technology 7, no. 3.24 (August 10, 2018): 770–774. Accessed February 11, 2026. https://www.sciencepubco.com/index.php/IJET/article/view/24578.