Koleksi
Natural language processing and text mining
Anne Kao - Stephen R. Poteet 
Emerging technologies of text mining  techniques and applications
Hércules Antonio do Prad 
Mining massive data sets for security
Francoise Fogelman-Soulie 
Survey of text mining II clustering, classification, and retrieval
Michael W. Berry - Malu Castellanos 
Handbook of research on text and web mining technologies
Min Song - Yi-fang Brook Wu