Astri Rinanti, Melati Ferianita Fachrul, and Rositayanti Hadisoebroto. “IMPROVING BIOSORPTION OF CU(II)-ION ON ARTIFICIAL WASTEWATER BY IMMOBILIZED BIOSORBENT OF TROPICAL MICROALGAE”. GEOMATE Journal, vol. 13, no. 36, Aug. 2017, pp. 6-10, https://geomatejournal.com/geomate/article/view/3020.