Tsegaye, F. ., A. M. . Taddesse, E. . Teju, and M. . Aschalew. “Preparation and Sorption Property Study of Fe3O4/Al2O3/ZrO2 Composite for the Removal of Cadmium, Lead and Chromium Ions from Aqueous Solutions”. Bulletin of the Chemical Society of Ethiopia, vol. 34, no. 1, Apr. 2020, pp. 105-21, doi:10.4314/bcse.v34i1.10.