WIJANARKO, W. Improvement of Mro Material Procurement Efficiency Through the Six Sigma Concept at PT Krakatau Steel (Persero) TBK. Jurnal Indonesia Sosial Teknologi, [S. l.], v. 5, n. 10, p. 4580–4592, 2024. DOI: 10.59141/jist.v5i10.5307. Disponível em: https://jist.publikasiindonesia.id/index.php/jist/article/view/5307. Acesso em: 7 nov. 2024.