Study of strength and hardness of plastic waste from polypropylene and low-density polyethylene for speedbump material. Proceedings Series of Borobudur International Symposium on Energy and Engineering, [S. l.], v. 1, p. V124038, 2024. DOI: 10.31603/biseeng.63. Disponível em: https://unimma.press/conference/index.php/biseeng/article/view/63. Acesso em: 10 jan. 2025.