Chukwudi, Ugochukwu Stanley, Mbakwe Chinwendu Christopher, and Ajator Uche. “Construction Externalities: A Theoretical Insight and the Nigerian Scenario”. Economy 2, no. 3 (September 9, 2015): 58–63. Accessed May 5, 2024. http://www.asianonlinejournals.com/index.php/Economy/article/view/567.