FORESTY, Karina; ., Maiyastri; ASDI, Yudiantri. PENERAPAN METODE SIX SIGMA PADA PENGENDALIAN KUALITAS AIR KEMASAN DI PT. GUNUNG NAGA MAS. Jurnal Matematika UNAND, [S. l.], v. 7, n. 1, p. 103–108, 2018. DOI: 10.25077/jmu.7.1.103-108.2018. Disponível em: https://jmua.fmipa.unand.ac.id/index.php/jmua/article/view/292. Acesso em: 3 nov. 2026.