Annur Fatihah and R. Mohamad, “Topi Keselamatan Pekerja Berasaskan IoT untuk Mengesan Paras Gas Toksik”, aitcs, vol. 6, no. 1, pp. 2117–2136, Jul. 2025, Accessed: Apr. 07, 2026. [Online]. Available: https://penerbit.uthm.edu.my/periodicals/index.php/aitcs/article/view/16351