Le, T. H., V. B. Pham, and T. D. Hoang. “Surface Finish Comparison of Dry and Coolant Fluid High-Speed Milling of JIS SDK61 Mould Steel”. Engineering, Technology & Applied Science Research, vol. 12, no. 1, Feb. 2022, pp. 8023-8, doi:10.48084/etasr.4594.