Gerezgiher, Alula Gebresas, Halefom Aregay Bsrat, Andrea Simon, and Tamás Szabó. “Development and Characterization of Sisal Fiber Reinforced Polypropylene Composite Materials”. International Journal of Engineering and Management Sciences 4, no. 1 (March 3, 2019): 348–358. Accessed May 4, 2024. https://ojs.lib.unideb.hu/IJEMS/article/view/5245.