Karthikprabu.B, Ayswarya.M, Chitra.R, and Sailendran.S.P. “Three Elements Control of Boiler Drum Using IOT”. International Journal of Intellectual Advancements and Research in Engineering Computations, vol. 6, no. 2, Mar. 2018, pp. 1369-76, doi:10.61096/ijiarec.v6.iss2.2018.1369-1376.