SILVA FIGUEROA, Renzo; ECHEVERRÍA HERRERA, Germán; VEGA ARRIAZA, Juan; SALAMANCA VERA, Diego. New approach to contract modifications at the sub-directorate of works of the road works directorate . Journal of Construction and Civil Engineering, [S. l.], v. 13, n. 1, p. 1–16, 2025. Disponível em: https://rioc.ufro.cl/index.php/rioc/article/view/3381. Acesso em: 30 jul. 2026.