Waleed Khalid M, D. Salman S. Adsorption of Chromium Ions on Activated Carbon Produced from Cow Bones. IJCPE [Internet]. 2019 Jun. 30 [cited 2024 May 3];20(2):23-32. Available from: https://ijcpe.uobaghdad.edu.iq/index.php/ijcpe/article/view/547