S.JAYACHITRA1; S.KAVIN; S.SASI; R.SETHUPATHI. IOT based coal mine workers safety monitoring and alerting system. International Journal of Intellectual Advancements and Research in Engineering Computations, [S. l.], v. 10, n. 2, p. 188–191, 2022. DOI: 10.61096/ijiarec.v10.iss2.2022.188-191. Disponível em: https://ijiarec.com/ijiarec/article/view/1732. Acesso em: 7 nov. 2026.