Usoro, Ubon. “Effectiveness of Sites and Services Schemes in Low and Medium Income Housing Provision in Nigeria”. International Journal of Economic Development Research and Investment (IJEDRI) 6, no. 2 (August 1, 2015): 39–50. Accessed June 7, 2025. https://icidr.org.ng/index.php/Ijedri/article/view/890.