2025. Analysis of the Defect Level of Paving Stone DC 06 Products Using Six Sigma and FMEA Methods at PT. Duta Beton Mandiri Pasuruan. JKIE (Journal Knowledge Industrial Engineering). 11, 3 (Apr. 2025), 134–146. DOI:https://doi.org/10.35891/jkie.v11i3.6168.