Alkateb, M., S. M. Sapuan, Z. Leman, M. Jawaid, and M. R. Ishak. “Crushing Behavior of Kenaf fiber/wooden Stick Reinforced Epoxy Hybrid "Green”composite Elliptical Tubes”. Polimery, vol. 63, no. 6, Jan. 2021, pp. 436-43, doi:10.14314/polimery.2018.6.4.