KARTIK SAHU. Lean Six Sigma and Its Effectiveness. NOLEGEIN-Journal of Operations Research & Management, [S. l.], v. 3, n. 1, p. 6–10, 2020. Disponível em: https://mbajournals.in/index.php/JoORM/article/view/519. Acesso em: 24 apr. 2026.