SIALLAGAN, S. I. A. Study on the Use of Hybrid Coconut Coir Fiber With Polyester Resin Bqtn 157 as Composite Material Matrix. International Journal of Mechanical Computational and Manufacturing Research, [S. l.], v. 11, n. 1, p. 21–30, 2022. Disponível em: https://trigin.pelnus.ac.id/index.php/Computational/article/view/22. Acesso em: 21 apr. 2026.