1. Organizational Buyer Behavior;Webster,1972
2. Principles of Marketing;Clark,1947
3. Sharing the Purchasing Decision;Grashof;Journal of Purchasing and Materials Management,1979
4. Purchasing Agents' Influence in the Buying Process;Bellizzi;Industrial Marketing Management,1980
5. Analyzing the Relative Power of Participants in Industrial Buying Decisions;Cooley,1977