RAI, A. K.; PAUL, B.; SINGH, G. A Study on Backfill Properties and Use of Fly Ash for Highway Embankments. Advances in BioScience, [S. l.], v. 1, n. 2, p. 110–114, 2010. Disponível em: https://e-journal.sospublication.co.in/index.php/ab/article/view/44. Acesso em: 7 dec. 2022.