Al-Hilli, Baha’a A.M. “The Effect of Cadmium Selenide Thin Film Thickness on Carbon Monoxide Gas Sensing Properties Prepared by Plasma DC-Sputtering Technique”. Iraqi Journal of Science 59, no. 4C (December 26, 2018): 2234-2241. Accessed December 7, 2021. https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/519.