1. Field test of vertical ground-coupled heat pump in Alabama;Kavanaugh;ASHRAE Trans,1992
2. Development of design tools for ground-source heat pump piping;Kavanaugh;ASHRAE Trans,1998
3. Ground source (geothermal) heat pumps, in course on heating with geothermal energy: conventional and new schemes;Lund,2000
4. Current status of geothermal energy applications in Turkey;Hepbaşlı;Energy Sources,2003
5. Esen H. Investigation of parameters effecting performance of a ground source heat pump. MS Thesis. Fırat University; 2002.