Shanil A, Sk Md Abidar Rahaman, Pankaj Mudholkar, Megha Mudholkar, Sridhara S B, Sandeep Prabhu M,. 2021. “Environmental Monitoring System Based on Internet of Things”. Design Engineering, September, 425-38. http://thedesignengineering.com/index.php/DE/article/view/4890.