1. Biju, P.A & Soumyo D.M. (2001) Innovation assessment through patent analysis. Technovation, 21,245-252.
2. Brandenburger, A.M., & Nalebuff, B.J.(1998) Co-opetition. New-York, USA: Bantam Doubleday Dell Publishing Group Inc.
3. CRRM (2004) DEA Diplôme d'Etude Approfondi, equivalent to the Master of Science, prior to the PhD in the French curricula. Retrieved June 12, 2005 from the World Wide Web: Http://crrm.u-3mrs.fr
4. Derwent (2004) Host databases description. Retrieved June 12, 2005 from the Worl Wide Web: Http://www.derwent.com/
5. Dou, H. & Manullang, S. (2003), The use of scientific indicators within the framework of the development of Indonesian Provinces, Information Science for Decision Making, ISDM, 7(65). Retrieved December 18, 2005 from the World Wide web: Http://www.isdm.org