SEPTIAN, A.; LENI; ANITA CHRISTINE SEMBIRING. Quality Control Improvement Using Seven Tools And Six Sigma Methods At Pt. Xyz. Jurnal Mantik, [S. l.], v. 6, n. 2, p. 1656-1663, 2022. DOI: 10.35335/mantik.v6i2.2605. Disponível em: https://iocscience.org/ejournal/index.php/mantik/article/view/2605. Acesso em: 1 may. 2026.