%0 Journal Article %T Predicting boiler efficiency deterioration using energy balance method: case study in 660 mw power plant jepara, central java, Indonesia %A Sagaf, M. %A Alim, S. %A Wibisono, C. %A Muzakki, A. %J Journal of Thermal Engineering %D 2020 %V 6 %P 247-256 %R 10.18186/thermal.821052