Schut, J., 1999. For compounding, sheet & profile: Wood is good. Plastic Technology, 45(3): 46-60.
 Stark, N.M., 2003. Photodegradation and photostabilization of weathered wood flour filled polyethylene composites. Michigan Technological University.
 San, H., L. Nee. and H. Meng., 2008. Physical and bending properties of injection moulded wood plastic composites boards. ARPN Journal of Engineering and Applied Sciences, 3:13-19.
 Morris, P. and Cooper,p., 1998. Recycled plastic/wood composite lumber attacked by fungi. Forest products journal, 48(1): 86-88.
 Schirp, A.,2008. Biological degradation of wood-plastic composites (WPC) and strategies for improving the resistance of WPC against biological decay., American Chemical Society, Washington, DC. p. 480-507.
 Fabiyi, J.S., 2007. Chemistry of Wood-Plastic Composites Weathering, in College of Graduate Studies University of Idaho.
 Muasher, M. and M. Sain., 2006. The efficacy of photostabilizers on the color change of wood filled plastic composites. Polymer degradation and stability, 91(5): 1156-1165.
 Rasouli, D., 2013. The effect of nano zinc oxide and zinc borateon weathering of wood-HDPE composite and improving its stability by photostabilizers., Ph.D Thesis, in College of Graduate Studies. Natural Resources Faculty, University of Tehran.(In Persian).
 Farahani, M.R.M. and F, Banikarim., 2013. Effect of Nano-Zinc Oxide on Decay Resistance of Wood-Plastic Composites. BioResources, 8(4): 5715-5720.
 Rasouli, D., M. Faezipour. and M.R. Masteri Farahani., 2015. Effects of nano zinc oxide and micro zinc borate on the durability of wood ﬂour/HDPE composite, Journal of Wood & Forest Science and Technology, 21(4): 131-146.
 Weichelt, F., 2010. ZnO‐Based UV Nanocomposites for Wood Coatings in Outdoor Applications. Macromolecular Materials and Engineering, 295(2): 130-136.
 Li, S.C. and Y.N. Li., 2010. Mechanical and antibacterial properties of modified nano‐ZnO/high‐density polyethylene composite films with a low doped content of nano‐ZnO. Journal of Applied Polymer Science, 116(5): 2965-2969.
 Bledzki, A.K. and O. Faruk., 2003. Wood fibre reinforced polypropylene composites: effect of fibre geometry and coupling agent on physico-mechanical properties. Applied Composite Materials, 10(6): 365-379.
 Lu, J.Z., Q. Wu. and I.I, Negulescu., 2005. Wood‐fiber/high‐density‐polyethylene composites: Coupling agent performance. Journal of Applied Polymer Science, 96(1): 93-102.
 Rong, M., M. Zhang. and W. Ruan., 2006. Surface modification of nanoscale fillers for improving properties of polymer nanocomposites: a review. Materials science and technology, 22(7): 787-796.
 Kord, B., A.H. Hemmasi. and I. Ghasemi., 2011. Properties of PP/wood flour/organomodified montmorillonite nanocomposites. Wood science and technology, 45(1): 111-119.
 Adhikary, K.B., S. Pang. and M.P, Staiger., 2008. Long-term moisture absorption and thickness swelling behaviour of recycled thermoplastics reinforced with Pinus radiata sawdust. Chemical Engineering Journal, 142(2): 190-198.
 Ghasemi, I. and B, Kord., 2009. Long-term water absorption behaviour of polypropylene/wood flour/organoclay hybrid nanocomposite. Iranian Polymer Journal, 18(9): 683-691.(In Persian).
 Stokke, D.D. and D.J. Gardner., 2003. Fundamental aspects of wood as a component of thermoplastic composites. Journal of Vinyl and Additive Technology, 9(2): 96-104.
 Kord, B., 2012. Effect of nanoparticles loading on properties of polymeric composite based on Hemp Fiber/Polypropylene. Journal of Thermoplastic Composite Materials, 25(7): 793-806.
 Pratheep Kumar, A. and R. Pal Singh., 2007. Novel hybrid of clay, cellulose, and thermoplastics. I. Preparation and characterization of composites of ethylene–propylene copolymer. Journal of Applied Polymer Science, 104(4): 2672-2682.