1. Effectiveness in strategic planning;Dyson;European Journal of Operational Research,1980
2. Effectiveness in marketing planning;Greenley;Strategic Management Journal,1983
3. From sales obsession to marketing effectiveness;Kotler;Harvard Business Review,1977
4. How effective is your planning;Heroux;Managerial Planning,1981
5. Does planning pay?;Ansoff;Long Range Planning,1970