Idoro, Godwin Iroroakpo. “Comparing the Planning and Performance of Direct Labour and Design-Bid-Build Construction Projects in Nigeria”. Journal of Civil Engineering and Management 18, no. 2 (April 2, 2012): 184-196. Accessed November 22, 2024. https://jeelm.vgtu.lt/index.php/JCEM/article/view/4439.