Kartika, Putri, Annisa Marwa, Tri Wahyuningsih, Yudi Prastyo, and Tri Ngudi Wiyatno. “Lowering Customer Claim &; Ng Ratio on Jack Bracket Part Using Lean Six Sigma-DMAIC Method at PT. XYZ”. Engineering And Technology Journal 9, no. 01 (January 16, 2024): 3319–3329. Accessed November 24, 2024. https://everant.org/index.php/etj/article/view/1136.