Mohanad Qader Kareem, Suzan Abd-allah Hassan, and Maad Mohammed Ameen. “Doping Effect ((COCl2.6H2O) & (CuCl2.6H2O))(2%)w V on Optical Energy Gap of (GA PVA) Composite Films”. Tikrit Journal of Pure Science 20, no. 4 (February 10, 2023): 114–119. Accessed June 18, 2025. https://tjpsj.org/index.php/tjps/article/view/1222.