Comparison of Total Tannin Levels in Extracts of Pegagan Leaves (Centella asiatica), Alang-Alang Roots (Imperata cylindrica), and Neem Leaves (Azadirachta indica) Using The UV-Vis Spectrophotometric Method. JURNAL FARMASIMED (JFM), [S. l.], v. 9, n. 1, p. 564–571, 2026. DOI: 10.35451/jfm.v9i1.3769. Disponível em: https://ejournal.medistra.ac.id/index.php/JFM/article/view/3769. Acesso em: 1 nov. 2026.