PENINGKATAN KUALITAS PRODUKSI KERTAS DAUR ULANG DI CEMARA PAPER MELALUI PENDEKATAN SIX SIGMA DENGAN METODE DMAIC. Integrative Perspectives of Social and Science Journal, [S. l.], v. 2, n. 05 Oktober, p. 7820–7834, 2025. Disponível em: https://ipssj.com/index.php/ojs/article/view/911. Acesso em: 21 oct. 2026.