Manga, Sani Dantani. “Maintenance of School Plant Landscaping in Secondary Schools in Arid Regions of Africa: Role of School Adminstrators”. The International Journal of Humanities & Social Studies 7, no. 10 (October 31, 2019). Accessed June 29, 2024. https://internationaljournalcorner.com/index.php/theijhss/article/view/149105.