S.Kumari, S.Kumari, T.K Divya, K. Keerthana, S.Nisha S.Nisha, and S.Pallavi S.Pallavi. “IOT Based Coal Mine Safety Monitoring and Controlling”. International Journal of Advanced Engineering Research and Science 7, no. 3 (March 11, 2020). Accessed November 23, 2024. https://journal-repository.com/index.php/ijaers/article/view/1787.