QUALITY CONTROL OF 240 ML CUP PRODUCT PACKAGING USING SIX SIGMA AND FMEA METHODS TO REDUCE PRODUCT REJECT FAILURE AT PT. XYZ. JKIE [Internet]. 2025 Apr. 26 [cited 2026 Jul. 24];11(1):31-5. Available from: https://jurnal.yudharta.ac.id/v2/index.php/jkie/article/view/6172