A System to Determine the Effect of Change Order for Roads Projects on Execution Time. Tikrit Journal of Engineering Sciences, [S. l.], v. 29, n. 1, p. 26–35, 2022. DOI: 10.25130/tjes.29.1.3. Disponível em: https://tj-es.com/ojs/index.php/tjes/article/view/42.. Acesso em: 10 sep. 2026.