WAHID, Herman. Design of a measurement device for air pollution concentrations using an open-source electronics software and hardware system. International Journal of Integrated Engineering, [S. l.], v. 9, n. 2, 2017. Disponível em: https://penerbit.uthm.edu.my/ojs/index.php/ijie/article/view/1835.. Acesso em: 23 jul. 2024.