Development Of An Iot And Fuzzy Logic Based Early Warning System Prototype For Toxic Gas Monitoring In Kawah Timbang, Dieng. CATHASAINTIFICA [Internet]. 2026 May 31 [cited 2026 Jun. 7];4(1):1-9. Available from: https://ojs.unsiq.ac.id/index.php/catha/article/view/10334