GEBREMARIAM, Zinabu. Major degradation problems in the Ethiopian Rift valley Lakes: Is the state of affairs improving or declining?. Sustainable Systems, [S. l.], v. 3, n. 1, 2023. DOI: 10.59411/5sv53j81. Disponível em: https://afri.et/sustainablesystems/article/view/86.. Acesso em: 16 sep. 2024.