abd, Intessar K. “Effect of Cu Doping on Optical Properties of Mn2O3 Films Prepared by Spray Pyrolysis”. Iraqi Journal of Physics 10, no. 18 (October 1, 2012): 94–97. Accessed May 3, 2025. https://www.ijp.uobaghdad.edu.iq/index.php/physics/article/view/753.