L. Hakim, G. Ariesta, and F. Fadillah, “ANALISA DEFECT BROWN PAPER DI PAPER MACHINE 2 MENGGUNAKAN METODE SIX SIGMA DI PT. INDAH KIAT PULP & PAPER TBK”, Scientica, vol. 2, no. 12, pp. 734–744, Sep. 2024.