Cheche, kalu kalu, N. P. Nwabuna, I. O. Chima, and P. U. . Ntaji. “Landscape Design and Architecture for Outdoor Learning Spaces: A Case Study of Akanu Ibiam Federal Polytechnic Unwana, Nigeria”. African Journal of Environmental Sciences and Renewable Energy, vol. 11, no. 1, June 2023, pp. 15-39, https://publications.afropolitanjournals.com/index.php/ajesre/article/view/488.