Ibrahim, Agus Malik, Dina Alva Prastiwi, and Boima Situmeang. 2026. “Comparison of the Antioxidant Activity of N-Hexane Extract of Gandaria Stem Bark Using DPPH and ABTS Assays”. Arfak Chem: Chemistry Education Journal 9 (1):812-19. https://doi.org/10.30862/accej.v9i1.1268.