R. Hathal, Yahya, et al. “Influence of DC Magnetron Sputtering Power on Structural, Topography, and Gas Sensor Properties of Nb2O5 Si Thin Films”. Iraqi Journal of Physics, vol. 21, no. 3, Sept. 2023, pp. 41-54, https://doi.org/10.30723/ijp.v21i3.1153.