Sirait TS, Arianto A, Dalimunthe A. Phytochemical Screening of Cinnamon Bark (Cinnamomum burmanii) (C. Ness & T. Ness) C. Ness ex Blume Ethanol Extract and Antioxidant Activity Test with DPPH (2,2-diphenyl-1-picrylhydrazyl) Method. IJSTM [Internet]. 2023 Jan. 10 [cited 2026 Feb. 11];4(1):254-9. Available from: https://ijstm.inarah.co.id/index.php/ijstm/article/view/739