Optimization of Surface Roughness for Al-alloy in Electro-chemical Machining (ECM) using Taguchi Method. Journal of Engineering, [S. l.], v. 23, n. 10, p. 62–71, 2017. DOI: 10.31026/j.eng.2017.10.05. Disponível em: https://joe.uobaghdad.edu.iq/index.php/main/article/view/171.. Acesso em: 6 may. 2024.