1. Boumedyen, S.: Adapt clustering methods for arabic documents. Am. J. Inf. Syst. 1(1), 26–30 (2013)
2. Boumedyen, S.: Investigating the distribution of arabic and english keywords and their progress over different text file formats, Am. J. Comput. Res. Repository, Vol. 1, No. 1, 1. (2013)
3. Belkin, N.J., Oddy, R.N., Brooks, H.M.: ASK for information retrieval: Part I. background and theory. J Documentation 38(2), 61–71 (1982)
4. Choo, C.W., Detlor, B., Turnbull, D.: Information seeking on the Internet: a review of the research literature. J. Inf. Sci. 26(2), 119–135 (2000)
5. Cutrell, E., Guan, Z.: What are you looking for?: an eye-tracking study of information usage in web search, Proceedings of the SIGCHI Conference on Human Factors in Computing Systems, pp. 407–416.(2007)