Belbellaa, Y. et al. 2023. Comparative Study to Optimize Surface Roughness of the Titanium Alloy Ti-6Al-4V by Applying Taguchi, RSM and TLBO Methods. Periodica Polytechnica Mechanical Engineering. 67, 1 (Jan. 2023), 1–11. https://doi.org/10.3311/PPme.17911.