E. Alagha, W. Alotaibi, M. Maghrbil, L. Hakami, and M. Alrashedi, “Effect of Different Finishing and Polishing Techniques on Surface Roughness of Two Universal Nanohybrid Composite Resins”, Open Access Maced J Med Sci, vol. 8, no. D, pp. 182–188, Oct. 2020.