WASET
    Dimitar Georgiev and  Bogdan Bogdanov and  Irena Markovska and  Yancho Hristov and  Dencho Stanev,  A Kinetic Study on the Adsorption of Cd(II) and Zn(II) Ions from Aqueous Solutions on Zeolite NaA.   journal   = {International Journal of Materials and Metallurgical Engineering}, [online]. World Academy of Science, Engineering and Technology.
    November 2011, vol. 59(11). 1017 - 1020
    [viewed 02 May 2024]. Available from: https://publications.waset.org/pdf/4011.