“Analysis of Building Information Modeling (BIM) 4D-5D Method to Minimize the Occurrence of Variation Orders in Design and Build Contract Models” (2023) International Journal of Engineering Research and Advanced Technology (ijerat) (E-ISSN 2454-6135) DOI: 10.31695/IJERAT, 9(12), pp. 1–13. doi:10.31695/IJERAT.2023.9.12.2.