Alajmi, F., A. Alajmi, A. Alrashidi, and N. Alrashidi. “COMPARATIVE STUDY BETWEEN GEOTHERMAL AND SOLAR HVAC SYSTEMS”. International Journal of Engineering Science Technologies, Vol. 5, no. 5, Oct. 2021, pp. 77-98, doi:10.29121/ijoest.v5.i5.2021.234.