Toyobo, E. A., and O. Abolade. “SUSTAINABLE SOLID WASTE MANAGEMENT IN NIGERIAN URBAN CENTERS; CAUSES AND POSSIBLE SOLUTIONS”. LAUTECH Journal of Engineering and Technology, vol. 3, no. 2, Feb. 2005, pp. 34-40, https://www.laujet.com/index.php/laujet/article/view/199.