Saleh, M. A. “Evaluation and Treatment of Cadmium Present in the Industrial Wastewater of the North Refineries Company by Using Attapulgite-NiCoFe2O4”. Journal for Research in Applied Sciences and Biotechnology, vol. 2, no. 4, Sept. 2023, pp. 116-21, doi:10.55544/jrasb.2.4.16.