Khan, F. U., M. Zubair, M. Z. Ansar, M. K. Alamgir, and S. Nadeem. “Effect of Annealing Temperature on the Structural and Optical Properties of TiO<sub>2</Sub> Thin Film Prepared by Sol-Gel Method”. Journal of Scientific Research, vol. 8, no. 3, Sept. 2016, pp. 267-72, doi:10.3329/jsr.v8i3.27195.