Biswas, R.K., Habib, M.A. and Hayat, M.A. 2004. KINETICS OF SOLVENT EXTRACTION OF ZIRCONIUM (IV) FROM CHLORIDE MEDIUM BY D2EPHA IN KEROSENE USING THE LEWIS CELL TECHNIQUE: A COMPARISON WITH SINGLE DROP TECHNIQUE. Biological Sciences - PJSIR. 47, 5 (Oct. 2004), 325–331.