Umeokafor, Nnedinma, and David Isaac. “Construction Health and Safety Self-Regulation in Developing Countries: A Nigeria Case Study”. Journal for the Advancement of Performance Information and Value 8, no. 1 (June 1, 2016): 3–1 . Accessed December 4, 2024. http://journal.cibw117.org/index.php/japiv/article/view/45.