• Carr A. S. and Smeltzer L. R., (1999), An Empirical Study of the Relationships Among Purchasing Skills and Strategic Purchasing, Journal of Supply Chain Management: A Global Review of Purchasing and Supply, 35(4), pp. 51-60.
• Can A. S., Leong G. K. and Sheu C, (2000), A Study of Purchasing Practices in Taiwan. International Journal of Operations and Production Management, 20(12), pp. 1427-1445.
• Carter C. R., (2005), Purchasing Social Responsibility and Firm Performance .International Journal of Physical Distribution and Logistics Management, 35(3) pp. 177-194.
• Campo K., Gijsbrechts E. and Nisol P., (2002), Dynamics in Consumer Response to Product Unavailability: Do Stockout Reactions Signal Response to Permanent Assortment Reductions? , Journal of Business Research, vol. 57, No. 8, pp. 834-43.
• Cannon J. P. and Perreault W. D. Jr., (1999), Buyer-Seller Relationships in Business Markets, Journal of Marketing Research, vol. 36, November, pp. 439-60.
• Carr A. S. and Pearson J. N., (1999), Strategically Managed Buyer-Supplier Relationships and Performance Outcomes, Journal of Operations Management 17(5), pp. 497-519