ABDUL HAMID, R.; KEHINDE, F. J. CHOOSING AN APPROPRIATE CONTINGENCY SUM ESTIMATING METHODS FOR HIGHWAY CONSTRUCTION PROJECTS IN NIGERIA: A LITERATURE REVIEW. PLANNING MALAYSIA, [S. l.], v. 15, n. 1, 2017. Disponível em: https://journals.iium.edu.my/pmr/index.php/pmj/article/view/217. Acesso em: 14 may. 2026.