Deepak, D., Patil Shrinivas, Ganti Hemant, and Ralisa Iasy. 2018. “Optimisation of Current and Pulse Duration in Electric Discharge Drilling of D2 Steel Using Graphite Electrode”. International Journal of Automotive and Mechanical Engineering 15 (4):5914-26. https://doi.org/10.15282/ijame.15.4.2018.14.0451.