Widi Astuti and Agus Prasetya and Endang Tri Wahyuni and I Made Bendiyasa, The Adsorption of Lead from Aqueous Solutions Using Coal Fly Ash : Effect of Crystallinity. journal = {International Journal of Chemical and Molecular Engineering}, [online]. World Academy of Science, Engineering and Technology. June 2011, vol. 54(6). 506 - 511 [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/11878.