SYAIEF, A. N. ANALISA SIX SIGMA PADA PROSES PEMBENGKOKAN (BENDING) MAIN WATER TUBE. ELEMEN : JURNAL TEKNIK MESIN, [S. l.], v. 3, n. 1, p. 07–09, 2016. DOI: 10.34128/je.v3i1.9. Disponível em: https://je.politala.ac.id/index.php/JE/article/view/9. Acesso em: 9 may. 2024.