RAFFI ARYA PRAYOGA; SUSATYO NUGROHO WIDYO PRAMONO. Analisis Pengendalian Kualitas Voucher Fisik Menggunakan Metode Six Sigma dan 5W+1H di PT XYZ. SABER : Jurnal Teknik Informatika, Sains dan Ilmu Komunikasi, [S. l.], v. 3, n. 2, p. 209–237, 2025. DOI: 10.59841/saber.v3i2.2620. Disponível em: https://jurnal.stikes-ibnusina.ac.id/index.php/SABER/article/view/2620. Acesso em: 16 jun. 2025.