“Effect of Annealing Temperature on the Structural, Optical and Sensitivity Properties of Nanostructure SnO2 Films to CO2 and NH3 Gas”. Iraqi Journal of Science 55, no. 3B (November 24, 2023): 1264–1286. Accessed May 17, 2024. https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/11609.