M. SETIAWAN, Dian. Scrap Rubber and Asphalt for Ballast Layer Improvement. International Journal of Integrated Engineering, [S. l.], v. 11, n. 8, p. 247–258, 2019. Disponível em: https://journal.uthm.edu.my/index.php/ijie/article/view/5326. Acesso em: 7 aug. 2026.