Ibrahim, Agus Malik, et al. “Comparison of the Antioxidant Activity of N-Hexane Extract of Gandaria Stem Bark Using DPPH and ABTS Assays”. Arfak Chem: Chemistry Education Journal, vol. 9, no. 1, June 2026, pp. 812-9, doi:10.30862/accej.v9i1.1268.