G. S. Ahmed, S. H. Salman, and E. Y. Abid, “Study the Optical Properties of Polymer Poly Vinyl Alcohol doped with CuO and Fe2Cl3 Thin films”, IHJPAS, vol. 29, no. 3, pp. 345–354, Dec. 2016, Accessed: Nov. 27, 2024. [Online]. Available: https://jih.uobaghdad.edu.iq/index.php/j/article/view/728