HIA, Selamat. Six Sigma Performance Assessment of Coal Truck Payload Based on Non-Normal Capability and Sigma Level Analysis. Systemic Analytics, [S. l.], 2026. DOI: 10.31181/sa202584. Disponível em: https://sa-journal.org/index.php/systemic/article/view/84.. Acesso em: 5 sep. 2026.