Chauhan, N.S., Mohapatra, P.K.J. and Pandey, K.P. 2006. Improving energy productivity in paddy production through benchmarking: an application of data envelopment analysis. Energy Conversion and Management, 47: 1063–1085.

Esengun, K., Erdal, G., Erdal, H. and Gunduz, O. 2007. Energy use and economic analysis of sugar beet production in Tokat province of Turkey. Energy, 32: 35-41.

Fageria, N.K., Slaton, N.A. and Baligar, V.C. 2003. Nutrient management for improving lowland rice productivity and sustainability. Advances in Agronomy, 80: 63-152

Fageria, N.K. 2007. Yield Physiology of Rice. Journal of Plant Nutrition, 30: 843–879.

Guruswamy, 1997. Sub Project on Research on Mechanization of Dry Land Agriculture. Univ. Agric. Sci., Dharwad.

Hamedani, S.R., Keyhani, A. and Alimardani, R. 2011. Energy use patterns and econometric models of grape production in Hamadan province of Iran. Energy, 36: 6345-6351

Hatirli, S.A., Ozkan, B. and Fert, C. 2006. Energy inputs and crop yield relationship in greenhouse tomato production. Renewable Energy, 31: 427-438.

Heidari, M.D. and Heidari, M.D. and Omid, M. 2011. Energy use patterns and econometric models of major greenhouse vegetable productions in Iran. Energy, 36: 220-225.Omid, M. 2011. Energy use patterns and econometric models of major greenhouse vegetable productions in Iran. Energy, 36: 220-225.

Ibrahim, H.Y. and Ibrahim, H.I. 2012. Energy use analysis for rice production in Nasarawa state, Nigeria. Tropical and Subtropical Agro-Ecosystems, 15: 649 – 655

Jekayinfa, S.O. 2006. Energy consumption pattern of selected mechanized farms in South-western Nigeria. Agricultural Engineering International: the CIGR Journal. Vol. VIII. Manuscript EE 06 001

Karale, D.S., Khambalkar, V.P., Bhende, S.M., Sharddha, B. Amle and Pranali, S. Wankhede, 2008, Energy Economic of Small Farming Crop Production Operations. World J. Agric. Sci., 4(4): 476-482

Khan, M.A., Ahmad, S., Hussain, Z., Yasin, M., Aslam, M. and Majid, R. 2004. Efficiency of water and energy use for production of organic wheat. Journal of Science, Technology and Development, 24: 25–29.

Kizilaslan, H. 2009. Input-output energy analysis of cherries production in Tokat province of Turkey. Applied Energy, 86: 1354–1358.

Komleh, P.S.H., Sefeedpari, P. and Rafiee, S. 2011. Energy and economic analysis of rice production under different farm levels in Guilan province of Iran. Energy, 36: 5824-5831.

Mandal, K.G., Saha, K.P., Ghosh P.K. and Hati, K.M. 2002. Bandyopadhyay, bioenergy and economic analysis of soybean-based crop production system in central India. Biomass and Bio-energy, 23: 337–345.

Mobtaker, H.G., Keyhani, A., Mohammadi, A., Rafiee, S. and Akram, A. 2010. Sensitivity analysis of energy inputs for barley production in Hamedan Province of Iran. Agriculture, Ecosystems & Environment, 137: 367-372.

Mohammadi, A. and Omid. M. 2010. Economic analysis and relation between energy inputs and yield of greenhouse cucumber production in Iran. Applied Energy, 87(1): 191-96.

Ozkanb, fert, C. and Karadeniz, F. 2007. Energy and cost analysis for green house and open-field grape production. Energy, 32: 15

Pimentel, D. 1992. Energy Inputs in Production Agriculture. Energy in Farm Production, Elsevier and Amsterdam, pp. 13-29.

Pishgar-Komleh, S.H., Sefeedpari, P. and Rafiee, S. 2011. Energy and economic analysis of rice production under different farm levels in Guilan province of Iran. Energy, 36: 5824-5831.

Singh, G., Singh, S. and Singh, J. 2004. Optimization of energy inputs for wheat crop in Punjab. Energy Conversion and Management, 45: 453–465.

Singh, S. and Mittal, J.P. 1992. Energy in Production Agriculture.1st Edition. Mittal Publication, New Delhi, pp.166.

Singh, S., Verma, S.R. and Mittal, J.P. 1997. Energy requirements for production of major crops in India. Agricultural Mechanization in Asia, Africa, and Latin America, 28: 13–27

Stout, B.A. 1990. Handbook of Energy for World Agriculture. Elsevier Applied Science, London.

Unakitan, G., Hurma, H. and Yilmaz, F. 2010. An analysis of energy use efficiency of canola production in Turkey. Energy, 35: 3623-3627

Yilmaz, I., Akcaoz, H. and Ozkan, B. 2005. An analysis of energy use and input costs for cotton production in Turkey. Renewable Energy, 30: 145–155.