Habibi, Muhammad, Henny Henny, and Ilin Sukma. “INTERNET OF THINGS-BASED AIR QUALITY MONITORING SYSTEM USING ESP32 AND PPD42 SENSOR TO SUPPORT OCCUPATIONAL SAFETY IN THE CRUSHER ROOM AREA”. Simtek : jurnal sistem informasi dan teknik komputer 11, no. 2 (November 2, 2026): 554–559. Accessed November 3, 2026. https://ejournal.catursakti.ac.id/index.php/simtek/article/view/1890.