Dr. J. Deny, Mettupalli Venkatasivareddy, Ch. V. Saiteja, S. K. Shahul. “IOT BASED SMART AGRICULTURE WATER QUALITY MONITORING AND CONTROLLING SYSTEM”. Design Engineering, June 2021, pp. 1461- 1466, http://www.thedesignengineering.com/index.php/DE/article/view/1852.