Development of an MQ-135-Based Indoor Cigarette Smoke Level Detection System. MEDIKA TRADA, [S. l.], v. 6, n. 1, p. 42–48, 2025. DOI: 10.59485/jtemp.v6i1.111. Disponível em: https://journal.polbitrada.ac.id/index.php/Jtemp/article/view/111. Acesso em: 9 oct. 2026.