1. Abu El-Khair , I. 2003 Effectiveness of document processing techniques for Arabic information retrieval.
2. Abu-Salem , H. 1992 A microcomputer based Arabic bibliographic information retrieval system with relational thesauri (Arabic-IRS).
3. Stemming methodologies over individual query words for an Arabic information retrieval system.;Abu-Salem;Journal of the American Society for Information Science,1999
4. Aljlayl , M. Beitzel , S. Jensen , E. Chowdhury , A. Holmes , D. Lee , M. 2002 IIT at TREC-10 265 274 http://trec.nist.gov/pubs/trec10/papers/IIT-TREC10.pdf