Hibrah, H. et al. 2022. Variation of Time and Ethanol Solvent Concentration Of Kinetic Maceration Tannin Extraction From Aromatic Areca Catechu. Jurnal Ilmiah Teknik Kimia. 6, 1 (Jan. 2022), 9–17. DOI:https://doi.org/10.32493/jitk.v6i1.14180.