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, https://ijiarec.com/ijiarec/article/view/661.