Imansuri, F., T. Chayatunnufus, S. Safril, F. Sumasto, B. H. Purwojatmiko, and D. . Salati. “Reducing Defects Using DMAIC Methodology in an Automotive Industry”. Spektrum Industri, vol. 22, no. 1, Apr. 2024, pp. 1-13, doi:10.12928/si.v22i1.171.