Rakesh Prajapati and  Purvik Patel and  Hardik Patel,  Optimization of Machining Parametric Study on Electrical Discharge Machining.   journal   = {International Journal of Mechanical and Mechatronics Engineering}, [online]. World Academy of Science, Engineering and Technology.
    March 2017, vol. 125(5). 967 - 975
    [viewed 15 October 2019]. Available from: https://publications.waset.org/pdf/10006997.