Tryfos, P. (1998). Methods for business analysis and forecasting: Text and cases. New York: John Wiley and Sons.
Παραπομπή Chicago StyleTryfos, Peter. Methods for Business Analysis and Forecasting: Text and Cases. New York: John Wiley and Sons, 1998.
Παραπομπή MLATryfos, Peter. Methods for Business Analysis and Forecasting: Text and Cases. New York: John Wiley and Sons, 1998.
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