NOMAN, Bilal Jabbar; ABD-AWN, Safaa H.; ABBAS, Hassan O. Effect of Pile Spacing on Group Efficiency in Gypseous Soil. Civil Engineering Journal, [S. l.], v. 5, n. 2, p. 373–389, 2019. DOI: 10.28991/cej-2019-03091252. Disponível em: https://www.civilejournal.org/index.php/cej/article/view/1409. Acesso em: 1 jul. 2025.