1. Zeolite A: a versatile builder;Bhatt;Chem. Week.,1995
2. Zeolite Molecular Sieves: Structure, Chemistry and Use;Breck,1984
3. ZEODET brochure. The use of zeolite in detergents, http://www.zeodet.org/index_publications.html.
4. Introduction to Zeolite Molecular Sieves;Dyer,1988