DSpace Collection: https://ndl.ethernet.edu.et/handle/123456789/88206 Sat, 05 Sep 2026 05:22:22 GMT 2026-09-05T05:22:22Z Environmental Physicochemical analysis https://ndl.ethernet.edu.et/handle/123456789/79372 Title: Environmental Physicochemical analysis Tue, 05 May 2020 00:00:00 GMT https://ndl.ethernet.edu.et/handle/123456789/79372 2020-05-05T00:00:00Z Environmental Biological Analysis https://ndl.ethernet.edu.et/handle/123456789/79370 Title: Environmental Biological Analysis Tue, 05 May 2020 00:00:00 GMT https://ndl.ethernet.edu.et/handle/123456789/79370 2020-05-05T00:00:00Z