Hasan, Saja. H., and Sarmed. S. Mahdi Alawadi. 2022. “Reducing the Purification Period of Congo Red Dye Solution By Using Co-Exposure to Ultraviolet and Green Laser As A Photocatalysit Source ”. Iraqi Journal of Science 63 (5): 2025-38. https://doi.org/10.24996/ijs.2022.63.5.18.