Widara, S., and E. Ludiya. “QUALITY CONTROL ANALYSIS OF BROCADE FABRIC PRODUCTS USING THE SIX SIGMA METHOD AT PT X IN CIMAHI CITY”. Indonesian Interdisciplinary Journal of Sharia Economics (IIJSE), Vol. 9, no. 2, Apr. 2026, pp. 10427-41, doi:10.31538/iijse.v9i2.9686.