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PENGENDALIAN KUALITAS PRODUK GALON AIR MINERAL 19 L DENGAN PENDEKATAN SIX SIGMA . JKIE [Internet]. 2019 Apr. 30 [cited 2026 Nov. 10];6(1):34-41. Available from: https://jurnal.yudharta.ac.id/v2/index.php/jkie/article/view/2052