1. Industrial and other applications of geothermal energy;Lindal;Geotherm. Energy, Earth Sci. UNESCO, Paris.,1973
2. “Geothermal energy;Dincer,2018
3. Geothermal energy: utilization and technology;Dickson,1995
4. Introduction, in Geothermal Engineering;Watson,2013
5. Energy and exergy analysis of a combined ground source heat pump system;Ozturk;Appl. Therm. Eng.,2014