The Causes Influencing the Occurrence of Variation Orders in the Construction of Buildings. Journal of Engineering, [S. l.], v. 28, n. 8, p. 34–53, 2022. DOI: 10.31026/j.eng.2022.08.03. Disponível em: https://joe.uobaghdad.edu.iq/index.php/main/article/view/1583.. Acesso em: 7 jul. 2024.