M. E. Alhaj, Motwkel, and Bashir M. Elhassan. “Fluoride Removal from Drinking Water Using Aluminium Oxide Coated Charcoal – Effectiveness of Repetitive Regenerations”. University of Khartoum Engineering Journal, vol. 10, no. 1, Oct. 2022, doi:10.53332/kuej.v10i1.912.