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Journal of Applied Polymer Science (Wiley) 126, 1008-1015 (2012). Bassam. El-Eswed, R. I. Yousef, M. Alshaaer, F. Khalili, H. Khoury "Alkali solid state conversion of kaolinite and zeolite to effective adsorbents for removal of lead from aquous solutions" Desalination and Water Treatment , 8, 124-130 (2009). ................
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