WASET
    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.