Nouby M. Ghazaly, J. N. F. “Examination of Causes and Effects of Accident on Construction Sites: (Case Study of Lagos, Lagos State, Nigeria)”. International Journal of Advanced Science and Technology, Vol. 28, no. 16, Dec. 2019, pp. 1687 -, http://sersc.org/journals/index.php/IJAST/article/view/2180.