1. Energy input–output analysis in Turkish agriculture;Ozkan;Renewable Energy,2004
2. Singh JM. On farm energy use pattern in different cropping systems in Haryana, India. Germany: Int Inst of Management, University of Flensburg, Sustainable Energy Systems and Management, Master of Science Thesis, Germany, 2002.
3. The Canadian Agricultural Energy End-Use Data and Analysis Centre (CAEEDAC). A descriptive analysis of energy consumption in agriculture and food sector in Canada, Final Report, February 2000. Available from: http://www.usask.ca/agriculture/caedac/main/tpage.html
4. Kennedy S. Energy use in American agriculture. Sustainable Energy Term Paper 2000. 5/1/2000. Available from: http://web.mit.edu/10.391j/www/proceeding.html
5. Yaldiz O, Ozturk HH, Zeren Y, Bascetincelik A. Energy usage in production of field crops in Turkey. 5th Int. Cong. On Mechanization and Energy Use in Agriculture, 11–14 Oct 1993. Kusadasi, Turkey.