1. Profitability Analysis by Market Segment;Beik;Journal of Marketing,1973
2. Segmenting the Industrial Market;Bonoma,1983
3. Sales Force Management;Churchill,1981
4. Key Options in Market Selection and Product Planning;Corey;Harvard Business Review,1973
5. Benefit Segmentation: A Decision-Oriented Research Tool;Haley;Journal of Marketing,1968