Rizki Andriani, and Budi Susetyo. “Factors Causing Overbudget for Roof Cover Work in the Construction of High-Rise Buildings”. I. J. of Engineering Research and Advanced Technology - IJERAT (ISSN: 2454-6135), CrossRef: 10.31695/IJERAT, vol. 5, no. 5, May 2019, pp. 10-18, doi:10.31695/IJERAT.2019.3434.