Prabhu, P, Umang ., Jyothi Jayakumar, Ch Phanindra Kumar, and . . “Intelligent Wearable Device for Coal Miners”. International Journal of Engineering & Technology 7, no. 3.12 (July 20, 2018): 677–680. Accessed April 29, 2024. https://www.sciencepubco.com/index.php/ijet/article/view/16453.