Hamad, Alwani, Dwi Nugraheni, Bekti Wulan Sari, and Mubshair Naveed. 2023. “Decaffeination of Coffee Bean Using Fermentation Process: Effect of Starter Concentration and Varieties on The Reduction of Caffeine and Antioxidant Activity”. Research in Chemical Engineering 2 (2):57-62. https://doi.org/10.30595/rice.v2i2.85.