Abera, Abeje, Derese Mersha, and Tafa Mosisa. “The Impacts of Public Expenditure on Sustainable Environmental Development in Sub-Saharan Africa”. Ethiopian Journal of Development Research 47, no. 2 (May 26, 2025): 367–420. Accessed July 31, 2025. https://ejol.aau.edu.et/index.php/EJDR/article/view/11774.