Setyawan, Sony, and Supriyati. 2024. “Penurunan NG Flow Out & NG Ratio Menggunakan Metode Lean Six Sigma - DMAIC”. Prosiding Sains Dan Teknologi 3 (1):211-19. https://jurnal.pelitabangsa.ac.id/index.php/SAINTEK/article/view/3261.