Supawi, Aiman, et al. “Electrode Wear Rate On Electrical Discharge Machining of Titanium Alloys (Ti-6Al-4V) At Different Peak Current and Pulse Duration by Using Modified RBD Palm Oil As Dielectric Fluids”. International Journal of Integrated Engineering, vol. 14, no. 8, Dec. 2022, pp. 1-8, https://penerbit.uthm.edu.my/ojs/index.php/ijie/article/view/12121.