Hammoud, F. K. ., and K. A. . Aadim. “Measurements and Calculations of Parametrs of Zinc Oxide Plasma Produced by Laser Induced Breakdown Spectroscopy”. Iraqi Journal of Science, vol. 63, no. 4, Apr. 2022, pp. 1540-8, doi:10.24996/ijs.2022.63.4.14.