MAULANI, Ragil; HANDAYATI, Yuanita. Reducing The Defect (Not Good) Rate to Improve Production Efficiency Using DMAIC: A Case Study of an Automotive Seat Cover Manufacturer. Economics and Business Journal (ECBIS), [S. l.], v. 4, n. 6, p. 3453–3462, 2026. DOI: 10.47353/ecbis.v4i6.482. Disponível em: https://ecbis.net/index.php/go/article/view/482. Acesso em: 12 sep. 2026.