Heru Ambrose Sinaga et al. 2026. Development of an Integrated Quality Control Model for Outer Gear Couplings Based on Six Sigma DMAIC and J48 Decision Tree. RESWARA: Jurnal Riset Ilmu Teknik. 4, 3 (Jul. 2026), 307–325. DOI:https://doi.org/10.70716/reswara.v4i3.570.