[1]. Asgharipour, M.R., Mondani, F., & Riahinia, S. (2012). Energy use efficiency and economic analysis of sugar beet production system in Iran: A case study in Khorasan Razavi province.Energy, 44: 1078–1084
[2]. Beheshti Tabar, I., Keyhani, A., & Rafiee, Sh. (2010). Energy balance in Iran's agronomy (1990- 2006). Renewable and Sustainable Energy Review, 14: 849–855.
[3]. Brandt-Williams, S. (2002). Handbook of emergy evaluation: a compendium of data for emergy computation issued in a series of Folios. Folio 4. Emergy of Florida agriculture. Gainesville, Florida, USA: Center for Environ-mental Policy. University of Florida.
[4]. Brown, M.T., & Arding, J. (1991). Transformities working paper. Gainesville: Center for Wetlands, University of Florida.
[5]. Brown, M.T., & Ulgiati. S. (2004). Energy quality, emergy, and transformity: H.T. Odum’s contributions to quantifying and understanding systems. Ecological Modeling, 178: 201–13.
[6]. Buenfil, A.A. (2001). Emergy evaluation of water.Doctoral dissertation. University of florida.
[7]. Cavalett, O., & Ortega, E. (2009). Emergy, nutrients balance, and economic assessment of soybean production and industrialization in Brazil. Journal of Cleaner Production, 17: 762–771.
[8]. Feng, J., Lu, S., Fu, Z., & Tian, D. (2013). Emergy analysis of protected grape production system in China. Advanced Materials Research, 76: 3938-3942
[9]. Ghaley, B., & Porter, J. R. (2013). Emergy synthesis of a combined food and energy production system compared to conventional wheat (Triticum aestivum) production system. Ecological Indicators, 24: 534–542.
[10]. Haden, A. (2002). Emergy Analysis of Food Production at S & S Homestead Farm. S & S Center for Sustainable Agriculture. P, 1-33
[11]. Higgins, J. B. (2003). Emergy analysis of the Oak Openings region. Ecological Engineering, 21: 75–109.
[12]. La Rosa, A.D., Siracusa, G., & Cavallaro, R. (2008). Emergy evaluation of Sicilian red orange production. A comparisonbetween organic and conventional farming. Journal of Cleaner Production, 16: 1907-1914.
[13]. Lu, H.F., Bai, Y., Ren H., & Campbel, D. (2010). Integrated emergy, energy and economic evaluation production of rice and vegtable system in alluvial paddy fields: Implications for agricultural policy in china. Journal of Environmental Managment, 91: 2727-2735.
[14]. Martin, J.F., Diemont, S.A.W., Powel, A., Stanton, M., & Levy-Tacher, S. (2006). Emergy evaluation of the performance and sustainability of three agricultural systems with different scales and management. Agriculture Ecosystems and Environment, 115: 128-140.
[15]. Odum, H.T., & Odum, E. C.(1983). Energy Analysis Overview of Nations: Concepts and Methods. Working Paper. International Institute of Applied Systems Analysis, Laxenburg, Austria, 469 pp.
[16]. Odum, H. (2007). Environment, Power, and Society for the Twenty-First Centurey. The Hierarchy of Energy. Columbia University Press, New York.
[17]. Odum. H., Brown, M.T., & Williams, S.B. (2000). Handbook of Emergy Evaluation, Environmental Engineering Sciences, University of Florida, Gainesville, 16 pp.
[18]. Ozkan, B., Akcaoz, H., and Fert, C. (2004). Energy input–output analysis in Turkish agriculture. Renewable Energy, 29: 39–51.
[19]. Ulgiati, S., Odum, H.T., & Bastianoni, S. (1994). Emergy use, environmental loading and sustainability. An Emergy Analysis of Italy. Ecological Modeling, 73: 215–268.
[20]. Wang, X., Chen, Y., Gao, W., Qin, J., Zhang, F., & Wu, X. (2014). Emergy analysis of grain production systems on large-scale farms in the North China Plain based on LCA. Agricultural Systems, 128: 66–78.
[21]. Zhang, L.X., Song, B., & Chen, B. (2012). Emergy-based analysis of four farming systems: insight into agricultural diversification in rural China. Journal of Cleaner Production, 28: 33-44.
)