Okoye, Boniface, Abiodun Olotuah, and Kelechi Ezeji. “Improving Maintenance Conditions Of Residential Buildings And Infrastructure Through Comparative Analysis: A Study Of Housing Development Corporation Estates In Enugu”. coou African Journal of Environmental Research 3, no. 1 (September 26, 2022): 53–66. Accessed December 8, 2022. http://ajer.coou.edu.ng/index.php/journal/article/view/122.