Ibraheem, Fakhri H., Heaven E. Mahmoud, Dunya I. Salih, Jahfar M. Smail, Hawbash H. Karim, and Faten A. Chaqmaqchee. 2025. “Extraction of Nickel Oxide from Spent Catalyst for Environmentally Safe Disposal”. ARO-THE SCIENTIFIC JOURNAL OF KOYA UNIVERSITY 13 (1), 22-26. https://doi.org/10.14500/aro.11889.