Soraya S. Testing the Tannin Content of Bay Leaves (Syzygium polyanthum) Using Various Ethanol Concentrations. JSK [Internet]. 2023 Sep. 24 [cited 2026 Jun. 24];14(2):129-35. Available from: http://www.ejurnalskalakesehatan-poltekkesbjm.com/index.php/JSK/article/view/417