Falih, A.K., Zumailan, A.A.A. and Shanaa, F.M. 2015. Influence of wood flour on the mechanical properties of birch flour reinforced thermoplastic polyurethane composite. University of Aden Journal of Natural and Applied Sciences. 19, 2 (Aug. 2015), 477–489. DOI:https://doi.org/10.47372/uajnas.2015.n2.a20.