Oraegbune, M.O., O.O. Ugwu, C.U. Nwoji, and G.C. Ezeokpube. “Achieving Sustainability in Transportation Infrastructure Projects (Roads): A Nigeria Case Study”. Journal of Environmental Science and Engineering Technology 3, no. 1 (March 24, 2015): 21–28. Accessed March 15, 2025. https://savvysciencepublishers.com/index.php/jeset/article/view/358.