1. S. Van Der Sluis; A clean technology of phosphoric acid process. Delft University Press. TRdiss 1550 – Juin 1987.
2. P. Becker; Phosphate and phosphoric Acid.Second Edition. Marcel DEEKER, Inc. New York and Basel 1983.
3. A.V. Slack; Phosphoric Acid, Fertiliser Science and Technology Series,V(1), Marcel Dekker, New York, 1968.
4. M. Miyamoto. Performance and operation of a new Nissan phosphoric acid process plant. The Hague the Netherlands, IFA, 13-16 September 1976.
5. K. V. Gobbitt E de. Design and Operating Data from the World's Biggest and Newest Hemihydrate Phosphoric Acid Plant.IFA Technical Conference. New Orleans, Louisiana, USA. 1-4 October 2000.