Ataiwi, Ali H. “Study the Effect of Adding TiO2 Nano-Powder on Some Surface Properties of TiO2 Thin Film Prepared on Stainless Steel Substrate”. Iraqi Journal of Physics, vol. 10, no. 18, Oct. 2012, pp. 29-34, https://ijp.uobaghdad.edu.iq/index.php/physics/article/view/743.