[1]. Moshir vaziri, H., and Makhdomi, A. (1992). Iranian poplar is forestry protector and developer of the forest industry, Wood Technical Office, Organization of Forests and Rangelands, Tehran.
[2]. Abbasi, H. (1990). Trees of fast growing. Jahad-e-Daneshghahy, Publication. Gorgan.
[3]. Bayatkashkoli, A., Shamsian, M., and Mansourfard, M. (2012). The effect of number of joints on bending properties of laminated lumber made from poplar (Populus nigra). Forest Study of China, 14(3): 246–250.
[4]. Madhoushi, M., Grey, M., Tabarsa, T., and Rafighi A. (2012). Nail and screw withdrawal strength, MOE and MOR in densified poplar Wood, Iranian Journal of Wood and Forest Science and Technology, 18(4):45-54.
[5]. Badig, J., and Jin, B. (1998). Wood mechanics and its composites products. Translated by Ebrahimi, Gh., Tehran University Publications, Tehran, Iran.
[6]. Inoue, M., Norimoto, M., Tanahashi, M., and Rowell, R.M. (1993). Steam or heat fixation of compression wood. Wood Fiber Science, 25 (3): 224-235.
[7]. Kolmann, F.D., and Cote, W.A. (1984). Principles of wood science and technology. Springer-Verlag, Berlin.
[8]. Marra, A. (1992). Technology of wood bonding: principles in practice. Van Nostrand Reinhold. New York.
[9]. Bayatkashkoli, A., and Jamshedzadeh, M. (2014). Comparing the mechanical strength of wooden chairs constructed using two patterns and mortise and tenon and dowel joints. Iranian Journal of Wood and Paper Science Research, 29 (1): 67-78.
[10]. Ebrahimi, Gh. (2007). Engineering design of furniture Structures. Tehran University Press, Tehran, Iran.
[11]. Eckelman, C. (2003). Textbook of product engineering and strength design of furniture. Purdue University Press. West Lafayette, USA.
[12]. Eckelman, C., and Haviarova, E. (2006). Performance test of school chairs constructed with round mortise and tenon jounts. Forest Products Journal. 56(3): 51-57.
[13]. Eckelman, C.A. (2004). Engineering design of furniture. Purdue University. USA.
[14]. Bayatkashkoli, A., and Nazerian, M. (2011). Determination of proper college student chair dimension and comparison with the prevalent model. Iranian Journal of Wood and Paper Science Research, 26(4):772-784.
[15]. Haviarova, E., Eckelman, C., and Erdil, Y. (2001). Design and testing of environmentally friendly wood school chairs for developing countries. Forest Products Journal, 51(3): 58-64.
[16]. Furniture - Chairs and tables for educational. institutions Part 2: Safety requirements and test methods. Institute of Standards and Industrial Research of Iran, ISIRI 9697-2, 2010. (In Persian).
[17]. Furniture –Chairs and tables for educational institutions. Part 2: Safety requirements and test methods. German institute for standardization (Deutsches Institut fur Normung)- Europa Norm, DIN EN 1729-2, 2006.
[18]. Vesi, J., Ebrahimi, G and Bahmani, M. (2010). A study of the effects of height and thickness of tenon made out of beech and hornbeam on bending strength of mortise and tenon joint. Iranian Journal of Wood and Paper Science Research, 25 (1): 128-137.