Pérez, C. F., Moya, E., & Coello, D. (2018). Use of an orthogonal arrangement for the analysis of the process of die sink electrical discharge machining with shape electrodes of graphite and copper on aluminum micro-casting). Enfoque UTE, 9(3), pp. 67 - 79. https://doi.org/10.29019/enfoqueute.v9n3.315