1. G. E. Briggs, A. B. Hope, and R. N. Robertson(1961 ).Electrolytes and Plant Cells.Oxford.
2. The colorimetric determination of phosphorus
3. R. A. Robinson, and R. H. Stokes(1965 ). Electrolyte Solutions.London.
4. Ca Fluxes and Membrane Potentials inNitella translucens