Khamis, Yuthriya, Mahmoud Alawi, Ramadhan Athumani, and Waheed Sanya. “An IoT Based Worker Safety Helmet Using Cloud Computing Technology”. Tanzania Journal of Engineering and Technology 41, no. 1 (July 16, 2022): 19-26. Accessed May 18, 2024. https://tjet.udsm.ac.tz/index.php/tjet/article/view/769.