EKAWATI, Y.; SHAGAN, O. Penerapan Metode Six Sigma Dalam Perbaikan Kualitas Kampas (Lining) Produk Brake Shoe Pada PT X. Journal of Integrated System, [S. l.], v. 4, n. 2, p. 133–149, 2021. DOI: 10.28932/jis.v4i2.3369. Disponível em: https://journal.maranatha.edu/index.php/jis/article/view/3369. Acesso em: 27 apr. 2024.