Azhar Mohammed Abed, Abdulhussain K. Elttayef, and Khalid Hamdi Razeg. “Effect of Thickness on Structural and Optical Properties of ZnS:Mn Films Prepared by RF Magnetron Sputtering Method”. Tikrit Journal of Pure Science, vol. 24, no. 5, Sept. 2019, pp. 65-69, doi:10.25130/tjps.v24i5.418.