Negara, D.N.K.P. , Widiyarta, I.M. , Gatot Karohika, I.M., Kade Suriadi, I.G.A. , Komang Dwijana, I.G. , Lokantara, I.P. , Parwata, I.M. and Suarsana, I.K. 2023. Preparation and Characterization of Pelleted and Powdered Activated Carbons Derived from Used Brewed Coffee. Trends in Sciences. 20, 12 (Sep. 2023), 7136. DOI:https://doi.org/10.48048/tis.2024.7136.