1. Anonymous, Degremont. Memento Technique de l'Eau, Vol. 1, Lavoisier, Paris, p. 594 (1989).
2. Physical Chemistry, Oxford Univ. Press, Oxford, U.K., p. 1015 (1982).
3. Physical Chemistry, 5th ed., Freeman, New York, p. 992 (1994).
4. Pecan shell activated carbon: synthesis, characterization, and application for the removal of copper from aqueous solution