“Study of Risk Analysis of Project Delivery System Design-Bid-Build (DBB) Highway Project in the Middle of Pandemic ”. International Journal of Engineering Research and Advanced Technology (ijerat) (E-ISSN 2454-6135) 7, no. 11 (November 21, 2021): 9–17. Accessed December 29, 2024. https://ijerat.com/index.php/ijerat/article/view/580.