Sonawane, S. A., B. P. Ronge, and P. M. Pawar. “Multi-Characteristic Optimization of WEDM for Ti-6Al-4V by Applying Grey Relational Investigation During Profile Machining”. Journal of Mechanical Engineering and Sciences 13, no. 4 (December 30, 2019): 6059-6087. Accessed September 30, 2020. https://journal.ump.edu.my/jmes/article/view/1014.