Development of Smart Helmet System with GSM And IoT for Hazardous Gas Detection . مجلة جامعة الزيتونة , [S. l.], n. 57, p. 148–159, 2026. DOI: 10.35778/t0h5ms16. Disponível em: https://azzujournal.azu.edu.ly/index.php/azzujournal/article/view/26. Acesso em: 18 سبتمبر. 2026.