ARI ZAQI AL-FARITSY; MARGARETTA FELIANTI SITORUS. ANALISIS PENGENDALIAN KUALITAS PRODUKSI DENGAN METODE SIX SIGMA PADA PT SUPRA MATRA ABADI AEK NABARA. Jurnal Cakrawala Ilmiah, [S. l.], v. 1, n. 6, p. 1413–1428, 2022. DOI: 10.53625/jcijurnalcakrawalailmiah.v1i6.1507. Disponível em: https://www.bajangjournal.com/index.php/JCI/article/view/1507. Acesso em: 2 aug. 2025.