Aydın, B., D. Aktürk, E. Özkan, H. Hurma, and M. A. Kiracı. “Comparatively Energy Use Efficiency and Economic Analysis in Pear Farming: Case of Thrace Region”. Turkish Journal of Agriculture - Food Science and Technology, vol. 5, no. 9, Sept. 2017, pp. 1072-9, doi:10.24925/turjaf.v5i9.1072-1079.1288.