2Robert A. Novack, Stephen W. Simco, The Industrial Procurement Process: A Supply Chain Perspective, Journal of Business Logistics,vol. 12 ,no. 1 ( 1991 ) ,pp. 145 - 167.
3Susan A. Shaw, Juliette Gibbs,Procurement Strategies of Small Retailers Faced with Uncertainty: An Analysis of Channel Choice and Behavior, The International Review of Retail Distribution and Consumer Research, vol. 9, no. 1 ( 1999 ), pp. 93 - 109.