Liu, Ruxi, Zhong Zhang, Jinzhao Huang, and Honglin Li. “Optical Properties of Indium-Doped ZnO Nano-Films Prepared by Spray Pyrolysis and Hydrothermal Synthesis”. Asian Journal of Chemistry 25, no. 17 (November 11, 2013): 9601–9604. Accessed April 24, 2024. https://asianpubs.org/index.php/ajchem/article/view/25_18_39.