Mat Jenur, S. R., M. S. Zainal, S. A. Hamzah, K. N. Ramli, M. N. Adon, J. Lias, M. Md Som, M. S. Mustapa, and S. Nordin. “Carbon Monoxide and Air Quality Monitoring System With MATLAB GUI for Smart Home Application”. Progress in Engineering Application and Technology, vol. 1, no. 1, Dec. 2020, pp. 206-17, https://publisher.uthm.edu.my/periodicals/index.php/peat/article/view/448.