Gonaldy, V. A., L. G. G. Saputri, and J. N. Olata. “Operational Management of Radiographic Equipment (X-Ray, CT-Scan, MRI): Correlation of Utilization, Idle Time, and Energy Consumption on Hospital Cost Efficiency”. Kontigensi : Jurnal Ilmiah Manajemen, Vol. 14, no. 1, June 2026, pp. 363-77, doi:10.56457/jimk.v14i1.942.