1. De, A. K., Khopkar, S. M. and Chalmers, R. A. 1970.Solvent Extraction of metals1–2. New York: Van Nostrand Reinhold.
2. Sekine, T. and Hasegawa, A. 1977.Solvent Extraction Chemistry512–516. New York: Marcel Dekker.
3. Ritcey, G. and Ashbrook, A. W. 1984.Solvent Extraction, Part I and II167–168. Amsterdam: Elsevier.