New cost control techniques in mega construction projects. Periodicals of Engineering and Natural Sciences, [S. l.], v. 9, n. 2, p. 454–461, 2021. DOI: 10.21533/pen.v9.i2.754. Disponível em: https://pen.ius.edu.ba/index.php/pen/article/view/754. Acesso em: 21 apr. 2026.