FADRI , Dzakirah Rofiana; FANDELI, Hary. Analisis Pengendalian Kualitas Produk Pipa Baja Di PT Kunango Jantan Dengan Metode Six Sigma. Jurnal Andalas: Rekayasa dan Penerapan Teknologi, [S. l.], v. 6, n. 1, p. 26–32, 2025. DOI: 10.25077/jarpet.v6i1.139. Disponível em: https://jarpet.ft.unand.ac.id/index.php/jarpet/article/view/139. Acesso em: 2 jun. 2026.