Mehmood, S., N. A. Anjum, W. Anwar, R. A. Rahman, K. Javed, and S. Badshah. “A Review of the Effect of Electric Discharge Machining on the Surface Integrity of Metallic Parts”. The Nucleus, vol. 55, no. 1, Aug. 2018, pp. 38-46, http://thenucleuspak.org.pk/index.php/Nucleus/article/view/365.