A.M, T. et al. 2015. BIOSORPTION OF Cd(II) ION BY DRAGON FRUIT PEEL (Hylocereus polyrhizus). Jurnal Akta Kimia Indonesia (Indonesia Chimica Acta). 8, 1 (Jun. 2015), 18–30. DOI:https://doi.org/10.20956/ica.v8i1.2478.