1. Zeolite Molecular Sieves;Breck,1974
2. An introduction to zeolite molecular sieves;Dyer,1988
3. Porous Materials in Environmental Friendly Processes;Colella,1999
4. Natural Zeolites. Occurence, Properties and Use,1978
5. Zeo-Agriculture. Use of Natural Zeolites in Agriculture and Aquaculture,1984