HASSAN, B.; JRAD, F.; AHMAD, S. . Study the Causes of Formal Change Orders and Analyze their Impact on Building Projects. Tishreen University Journal -Engineering Sciences Series, [S. l.], v. 35, n. 4, 2015. Disponível em: https://journal.tishreen.edu.sy/index.php/engscnc/article/view/321. Acesso em: 19 apr. 2024.