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The Effect of Fermentation Time Variation on Antioxidant Activity of Fermented Robusta Coffee Leaves (Coffea canephora Pierre ex A.Froehner) Brew. Indonesian J. of Pharmaceutical and Clinical Res. [Internet]. 2023Dec.21 [cited 2025Jul.14];6(2):19-25. Available from: https://talenta.usu.ac.id/idjpcr/article/view/14255