IMAMAH, Nahdiyahainul; PUSAKANINGWATI, Ayik. Pengendalian Kualitas Produk Cacat Paving DC 06 N dengan Menggunakan Metode Six Sigma di PT. Duta Beton Mandiri Purwosari. As-Syirkah: Islamic Economic & Financial Journal, [S. l.], v. 3, n. 4, p. 1821 – 1840, 2024. DOI: 10.56672/fb7maj91. Disponível em: https://journal-ikadi.com/ojs/index.php/assyirkah/article/view/339. Acesso em: 29 aug. 2026.