NALHADI, Ahmad; AIDA, Nur; RAMAYANTI, Gina. Usulan Perbaikan Kualitas Produk Pipa Api 5L PSL2 Menggunakan Metode Six Sigma. Jurnal INTECH Teknik Industri Universitas Serang Raya, [S. l.], v. 4, n. 2, p. 77–85, 2018. DOI: 10.30656/intech.v4i2.1083. Disponível em: https://e-jurnal.lppmunsera.org/index.php/INTECH/article/view/1083. Acesso em: 19 jun. 2025.