UNIVERSITY OF KHARTOUM, B. and R. R. I. . Journal of Building and Road Research. Journal of Building and Road Research, [S. l.], v. 19, 2021. DOI: 10.53332/jbrr.v19i.589. Disponível em: http://onlinejournals.uofk.edu/index.php/JBRR/article/view/589. Acesso em: 4 apr. 2025.