Falih, A. K., Zumailan, A. A. A., & 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), 477–489. https://doi.org/10.47372/uajnas.2015.n2.a20