1. Standard methods for the examination of water and waste water;APHA,2005
2. Sorption of phenolics onto cross-linked poly(4-vinyl pyridine);Chanda;Reactive Polymers,1983
3. Selective removal of the heavy metal ions from waters and industrial wastewaters by ion-exchange method;Dabrowski;Chemosphere,2004
4. Sorption and structure of active carbons;Dubinin;Journal of Physical Chemistry,1947
5. Uber die adsorption in losungen;Freundlich;International Journal of Research in Physical Chemistry and Chemical Physics,1906