, S. D. P. M. M. G. R. B. M. Y. K. Application of Six Sigma Method to Reduce Defects in Green Sand Casting Process: A Case Study. International Journal on Recent Technologies in Mechanical and Electrical Engineering, [S. l.], v. 2, n. 6, p. 37–42, 2015. Disponível em: https://www.ijrmee.org/index.php/ijrmee/article/view/258. Acesso em: 12 oct. 2025.