Irawan, Yuda, Andre Wahyu Novrianto, and Hafizh Sallam. “Cigarette Smoke Detection And Cleaner Based On Internet Of Things (IoT) Using Arduino Microcontroller And MQ-2 Sensor”. Journal of Applied Engineering and Technological Science (JAETS) 2, no. 2 (May 9, 2021): 85–93. Accessed July 7, 2025. https://www.yrpipku.com/journal/index.php/jaets/article/view/218.