Mutuku, Heeran M., and Harun M. Kiruki. “Determinants of Tree Growing and Cover Retention in Arid and Semi-Arid Areas of East Africa: The Case of Machakos County, Kenya”. European Scientific Journal, ESJ 19, no. 18 (June 30, 2023): 212. Accessed May 17, 2024. https://eujournal.org/index.php/esj/article/view/16948.