1. Efficiency of removal of lead, cadmium, copper and zinc from aqueous solutions using six common types of plant leaves;Abu-El-Halawa;Pakistan Journal of Applied Science,2003
2. The removal of heavy-metal ions by seaweeds and their derivatives;Aderhold;Bioresource Technology,1996
3. Adsorption of metal ions by moss;Al-Asheh;Advances in Environmental Research,1997
4. The interaction effects of cypress, cinchona and pine leaves on their efficiencies for lead removal from aqueous solutions;Al-Subu;Advances in Environmental Research,2002
5. Removal of dissolved copper from polluted water using plant leaves;Al-Subu;Revista Internacional de Cotaminacion Amiental,2001