Issa, Muna A., and Kadhim A. Aadim. “Optical Emission Spectroscopy of Zinc Oxide Doped Nickel Oxide to Calculate Plasma Parameters Using the Boltzmann Plot Method”. Iraqi Journal of Physics 23, no. 2 (June 1, 2025): 118–127. Accessed July 4, 2025. https://ijp.uobaghdad.edu.iq/index.php/physics/article/view/1230.