Baytorun, A. N., D. Önder, and Özkan Gügercin. “Comparison of Fossil Fuel and Geothermal Energy Sources Used for Greenhouse Heating”. Turkish Journal of Agriculture - Food Science and Technology, vol. 4, no. 10, Oct. 2016, pp. 832-9, doi:10.24925/turjaf.v4i10.832-839.863.