Using Lean and Six Sigma to Enhance Productivity in Multinational Corporations. E-Journal of Science and Emerging Technologies (EJSET), [S. l.], v. 1, n. 1, p. Jan (1–11), 2025. Disponível em: https://ejset.org/index.php/ejset/article/view/5. Acesso em: 10 jun. 2026.