"Incorporation of Fluoride into Coating Process of Aluminium Oxide Coated Charcoal to Enhance Its Adsorption Capacity". University of Khartoum Engineering Journal 12, no. 1 (ديسمبر 18, 2022). تاريخ الوصول يوليو 8, 2026. https://onlinejournals.uofk.edu/kuej/article/view/1292.