1. Solvent extraction in hydrometallurgy;Cox,1992
2. The chemistry of solvent extraction;Kertes,1971
3. Commercial solvent systems for inorganic processes;Flett,1983
4. Industry intrigued by CO2 as solvent;McCoy;Chem. Eng. News,1999
5. Supercritical Fluid Extraction: Principles and Practice;McHugh,1994