Asadi, F. and Bagheri, R., 1994. Changes in poplar cultivation using aerial photographs and ground controls. Journal of Forest and Poplar Research, 3(1):89-108. (In Persian).
 Jazirehee, M., 1999. Reforestation in arid areas. University of Tehran Press, 455 p. (In Persian).
 Fattahi, M., 1999. Zagros forests management. Forest and Rangelands Research Institute publication. Tehran, 255 p. (In Persian).
 Vatani, L. and Davanlu, M., 2008. Problems and barriers in wood culturing. The second poplar planting potentially, Forest and Rangelands Research Institute, 2(1): 355-358. (In Persian).
 Carter, D.R. and Newman, D.H., 1998. The impact of reserve prices in sealed did federal timber sale auctions. Forest Science, 44(1): 485-495.
 Louis, E.B., James, P.E. and Fernanes. C. M., 1999. Agro-forestry in Sustainable Agriculture Systems. CRC Press, lewis, 416 p.
 Knoke, T., Martin, M. and Plusczyk., 2001. The effect of Volatile stumpage pieces on the economic attractiveness of a silvicultur transformation strategy. Forest Policy and Economics, 2(2): 229-240.
 Balatinecz, J. and Kretschmann, D., 2001. Properties and utilization of poplar wood, in poplar culture in North America, Part A, Chapter 9, NRC research press, National research council of Canada, Ottawa, ON KIA OR6, Canada. 5(2). 277-291.
 Davision, J. and Riggs, W., 2004. Hybrid poplar production 1998-2003 in Eureka and Churchill counties, university of Nevada publication search, 35(1):25-39.
 Niquidet, K. and van Kooten, G.C., 2006. Transaction Evidence Appraisal: Competition in British Columbia’s Stumpage Markets, Forest Science, 52(4): 451-459.
 Kitikidou, K., Minas, K. and Milios, E., 2012. Site index curves for young Populous tremula stands on Athos Peninsula (northern Greece). Tubitak, 36(2): 55-63.
 Jalili, A. and Ghasemi, F., 2007. Strategy for sustainable supply of lignocelluloses materials, Forest and Rangelands Research Institute.3 (1): 312-319. (In Persian).
 Miller, P., Botham, R., Martin, R. and Moore, B., 2001. Business clusters in the UK: a first assessment. Department of Trade and Industry, London, 3(2): 18-32.