Nitin Jangid, Surbhi Singh, Rashi Jain, Parkash Dangi,. “AIR AND SOUND POLLUTION MONITORING SYSTEM USING IOT”. Design Engineering (June 24, 2021): 2235- 2242. Accessed May 4, 2024. http://www.thedesignengineering.com/index.php/DE/article/view/2239.