Negara, Dewa Ngakan Ketut Putra, I Made Widiyarta, I Made Gatot Karohika, I Gusti Agung Kade Suriadi, I Gusti Komang Dwijana, I Putu Lokantara, I Made Parwata, and I Kt Suarsana. “Preparation and Characterization of Pelleted and Powdered Activated Carbons Derived from Used Brewed Coffee”. Trends in Sciences 20, no. 12 (September 10, 2023): 7136. Accessed April 8, 2026. https://tis.wu.ac.th/index.php/tis/article/view/7136.