Text Books:-

1. Current Protocols in Immunology (1995) 1.0.3-1.0.6,Contributed by John Donovan and Patricia Brown.
2. Lorette C.Javois ,Immunocytochemical Methods and Protocols, HUMANA PRESS,Second edition,Volume 115
3. David S.Hage, Handbook of Affinity Chromatography, Second edition, Volume 92

Webliography:-

1. www.en.wikipedia.org/wiki/Ammonium_sulfate_precipitation
2. www.encorbio.com/protocols/AM-SO4.htm
3. www.biologicalworld.com/ammoniumsulfateprecipitation.htm
4. www.hymanlab.mpi-cbg.de/hyman_lab/methods/general/ammonium_sulfate_precipitation.shtml
5. www.proteincrystallography.org/protein-purification/proteins-precipitation-by-ammonium-sulphate.php
6. www.eng.umd.edu/~nsw/ench485/lab6a.htm