Abera, A. ., D. . Mersha, and T. . Mosisa. “The Impacts of Public Expenditure on Sustainable Environmental Development in Sub-Saharan Africa”. Ethiopian Journal of Development Research, vol. 47, no. 2, May 2025, pp. 367-20, https://ejol.aau.edu.et/index.php/EJDR/article/view/11774.