Malathy1, V., et al. “Compositional and Surface Morphological Analysis on Indium Tin Oxide Thin Films Prepared by Radio Frequency Sputtering”. Asian Journal of Chemistry, vol. 25, no. 20, May 2013, pp. 279-82, https://asianpubs.org/index.php/ajchem/article/view/25_Supplementary%20Issue_77.