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Tesfahun Sisay, Bewketu Mehari Mehari, and Dereje Yenealem. 2024. “Elemental and Polyphenol Contents of Green Coffee Beans from Central Gondar Zone, Ethiopia”. Ethiopian Journal of Natural and Computational Sciences 3 (2):443-52. https://doi.org/10.20372/ejncs.v3i2.778.