Dr.Vimala Juliet A,Deepa N, Saurabh Shukla, Sanjai Aravindhan S, Muskaan Sharma. “Display Device for Colorimetric Sensor ”. International Journal of Advanced Science and Technology, Vol. 29, no. 7, June 2020, pp. 11227-31, http://sersc.org/journals/index.php/IJAST/article/view/27543.