Widyarto WO, Firdaus A, Kusumawati A. Analisis Pengendalian Kualitas Air Minum dalam Kemasan Menggunakan Metode Six Sigma. INTECH [Internet]. 2019 July 1 [cited 2026 Nov. 9];5(1):17-22. Available from: https://e-jurnal.lppmunsera.org/INTECH/article/view/1460