“Effect of Annealing temperature on the Structural, Optical and Sensitivity Properties of Nanostructure SnO2 Films to CO2 and NH3 Gas”, Iraqi Journal of Science, vol. 55, no. 3B, pp. 1264–1286, Nov. 2023, Accessed: May 17, 2024. [Online]. Available: https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/11609