1. 1. J. Stary, “The Solvent Extraction of Metal Chelates”, 1964, Pergamon Press, Oxford.
2. 2. Y. Marcus and A. S. Kertes, “Ion Exchange and Solvent Extraction of Metal Complexes”, 1969, Wiley, London.
3. 3. T. Sekine and Y. Hasegawa, “Solvent Extraction in Chemistry”, 1977, Marcel Dekker, New York.
4. 4. J. Rydberg, C. Musikas, and G. R. Choppin, “Principles and Practices of Solvent Extraction”, 1992, Marcel Dekker, New York.
5. Solvent extraction behavior of rare earth ions with 1-phenyl-3-methyl-4-benzoyl-5-pyrazolone—II