ROSADY, Fakhriansyah. Analysis of Boiler Operational Efficiency Based on Fly Ash and Bottom Ash Production Using the Data Envelopment Analysis Method at PT. XYZ. Journal of Industrial Innovation and Safety Engineering, [S. l.], v. 3, n. `1, p. 28–37, 2026. DOI: 10.35718/jinseng.v3i`1.8481975. Disponível em: https://journal.itk.ac.id/index.php/jinseng/article/view/8481975. Acesso em: 9 jun. 2026.