NAVALURI, S. . Flaw Reduction in Low Alloy Steel Butter Welds for Productivity Improvement Using Six Sigma. International Journal of Research in Engineering, Science and Management, [S. l.], v. 3, n. 10, p. 47–53, 2020. Disponível em: https://www.journals.resaim.com/ijresm/article/view/333. Acesso em: 27 nov. 2020.