Dubbale Daniel A. and Tsutsumi J. and Michael J. Bendewald, Urban Environmental Challenges in Developing Cities: The Case of Ethiopian Capital Addis Ababa. journal = {International Journal of Environmental and Ecological Engineering}, [online]. World Academy of Science, Engineering and Technology. June 2010, vol. 42(6). 164 - 169 [viewed 19 April 2024]. Available from: https://publications.waset.org/pdf/12541.