1. Outsourcing: a review of current trends and supporting tools;Byrne;Logistics Solutions,2004
2. Logistics in manufacturing;Gopal,1992
3. Managing the global supply chain;Schary,1998
4. Capgemini, Georgia Insitute of Technologie, Fedex. Third-party logistics. Results and findings of the 2004 ninth annual study; 2004.
5. Vendor selection criteria and methods;Weber;European Journal of Operational Research,1991