Sulistyo, H., S. S. Rahayu, W. B. Sediawan, S. Sarto, dan T. Syarif. Kinetics of Ferrous Sulfate Catalytic Oxidation from Dissolved Iron Waste in Sulfuric Acid. Vol. 9, no. 2, Desember 2009, hlm. 49-56, https://jurnal.ugm.ac.id/v3/AJChE/article/view/8058.