Virman Abdillah, Virman Abdillah, and Abdul Wahid. “IDENTIFICATION OF DEFECTS IN 600 ML DRINKING WATER BOTTLES USING THE SIX SIGMA APPROACH”. Metode : Jurnal Teknik Industri, vol. 10, no. 2, Oct. 2024, pp. 227-36, doi:10.33506/mt.v10i2.3526.