NURSHIHAH, Uyuun; DAHDA, Said salim; JUFRIYANTO, Moh. ANALISIS PENGENDALIAN KUALITAS KANDUNGAN NUTRISI PUPUK NPK MENGGUNAKAN SIX SIGMA DAN NEW SEVEN TOOLS (STUDI KASUS : PT. XYZ). JUSTI (Jurnal Sistem dan Teknik Industri), [S. l.], v. 6, n. 2, p. 214–223, 2026. DOI: 10.30587/justicb.v6i2.11196. Disponível em: https://journal.umg.ac.id/index.php/justi/article/view/11196. Acesso em: 15 jun. 2026.