Alcantara, R. T., D. C. Apodaca, dan M. R. D. Guzman. The Effect of the Presence of Cu2+ and Fe3+ Metal Ions on the Sorption of Mercuric Ion (Hg2+) by Sargassum Cristaefolium. Vol. 7, no. 2, Desember 2007, hlm. 147-5, https://jurnal.ugm.ac.id/v3/AJChE/article/view/7689.