Thilagaraj.M, R.Krishnakumar, Krishnaraj.M, Aravinth.V, Mohan Raj.P, Akashkumar.K. “Design and Implementation of Coal Mine Safety Monitoring and Alerting System Using IoT”. International Journal of Modern Agriculture 10, no. 2 (April 27, 2021): 2382 - 2389. Accessed March 28, 2024. http://modern-journals.com/index.php/ijma/article/view/1032.