NASUTION, L. R.; SARAGI, D. A.; YADE METRI PERMATA. The Effect of Fermentation Time Variation on Antioxidant Activity of Fermented Robusta Coffee Leaves (Coffea canephora Pierre ex A.Froehner) Brew. Indonesian Journal of Pharmaceutical and Clinical Research, v. 6, n. 2, p. 19-25, 21 Dec. 2023.