Sirait, T. S.; 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. International Journal of Science, Technology & Management 2023, 4, 254-259.