R. PAVANA KUMARI; MS. VENKATA LAKSHMI; G.AYESHA SULTANA; K..L.N.S MURTHY. A PROTOTYPE OF SMART HELMET FOR WORKERS SAFETY IN HAZARDOUS ENVIRONMENT. International Journal of Advance Engineering and Research Development (IJAERD), [S. l.], v. 5, n. 4, p. 242–245, 2018. Disponível em: https://ijaerd.org/index.php/IJAERD/article/view/3052. Acesso em: 7 jul. 2025.