The Effect of Fracture Strength of Composite Materials with the Addition of Pineapple Leaf Fiber. Journal of Innovation and Technology, [S. l.], v. 6, n. 02, p. 54–59, 2025. Disponível em: https://ojs.umrah.ac.id/index.php/jit/article/view/7544. Acesso em: 29 dec. 2025.