Pengaruh Kosentari Natrium Hidroksida Terhadap Ketangguhan Komposit Polyester Berpenguat Serat Serabut Kelapa: Effect of Sodium Hydroxide Cosentration on The Toughness of Polyester Composites Reinforced with Coconut Fiber. Journal of Technology, Innovation and Reseach in Engineering, [S. l.], v. 1, n. 1, p. 34–38, 2026. Disponível em: https://journal.grahawidya.org/index.php/tire/article/view/19. Acesso em: 9 aug. 2026.