Hasan Kadhim, B., and W. Sadik Mahmood. “Effect of Gaseous Ozone on Surface Hardness and Surface Roughness of Heat Cure Acrylic Resin”. Al-Rafidain Dental Journal, vol. 24, no. 2, Sept. 2024, pp. 509-16, doi:10.33899/rdenj.2023.137166.1181.