Sani, A., Ahmad, A. and Zenta, F. 2019. EFFECT OF METAL ION Cu (II) and Mg (II) ON THE ACTIVITIES ANTIOXIDANT ANTHOCYANIN OF EXTRACT ETHANOL SKIN DRAGON FRUIT RED(Hylocereuspolyrhizus). Jurnal Akta Kimia Indonesia (Indonesia Chimica Acta). 11, 1 (May 2019), 11-20. DOI:https://doi.org/10.20956/ica.v11i1.6400.