Investigation of Impact Strength Properties of Oil and Date Palm Frond Fiber Reinforced Polyester Composites. International Journal of Current Engineering and Technology, [S. l.], v. 3, n. 2, p. 493–497, 2013. Disponível em: https://ijcet.evegenis.org/index.php/ijcet/article/view/243. Acesso em: 4 apr. 2026.