SUPARNO; HAMIM, M. I. .; PRASETIAWAN, H. ANALISIS PENGENDALIAN KUALITAS PRODUKSI BOGIE BARBER S2HD9C MENGGUNAKAN METODE LEAN SIX SIGMA DI PT BARATA INDONESIA (PERSERO) GRESIK . Journal of Research and Technology, [S. l.], v. 2, n. 2, p. 32–46, 2016. DOI: 10.55732/jrt.v2i2.235. Disponível em: https://journal.unusida.ac.id/index.php/jrt/article/view/235. Acesso em: 4 apr. 2025.