Mathew Okopi U, Mohammed M. Spontaneous Settlements at the Peri-Urban Fringe: The Benefits of Adopting the Principles of Sustainability. CJRBE [Internet]. 2021 Feb. 1 [cited 2024 May 2];8(2). Available from: https://journals.covenantuniversity.edu.ng/index.php/cjrbe/article/view/2455