TAHIR, Tamus bin. THE SYSTEM OF MONITORING LEVELS OF GASES SUCH AS CARBON MONOXIDE (CO) IS IN THE AIR. Patria Artha Technological Journal, [S. l.], v. 1, n. 2, p. 137–144, 2017. DOI: 10.33857/patj.v1i2.68. Disponível em: https://ejournal.patria-artha.ac.id/index.php/patj/article/view/68. Acesso em: 21 sep. 2026.