اهمية الاعلان

2. 
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3. .1
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



4. 

.1
.2

5. 

6. 

.1
.2
.3

7. 

8. 
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9. 

10. 
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11. 
product&differentiation
buying motives
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12. 

13. 

14. mass 
production
manufacturing costs

15. 
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16. 
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17. 

18. 
prosperity
depression
down_swing

19. 
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
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20. 

.1
.2

21. pioneering stage 
competitive stage 
retentive stage 

22. .1






23. 
.1
.2

24. :
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25. 
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26. 
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27. 
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28. 
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