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2. Decision criteria in contractor prequalification;Russell;Journal of Management in Engineering A.S.C.E.,1988
3. An examination of the importance of resource considerations when contractors make project selection decisions;Odusote,1990
4. The Procurement of Professional Services, Guidelines for the Value Assessment of Competitive Tenders;C.I.C.,1994
5. Evaluation of alternative methods of contractor selection;Harper,1971