1. To take the data from the study about the demographic characteristics of the user. With exposure to information about car maintenance center company Bridgestone A. C.The limited, different in plan to use public relations to ให้ถึง target effectively and efficiency. Because the concept about the demographic characteristics.The different behavior, such as gender age educational level is what job, however, status, married or single, and average income per month. Which factors., (Myer1982 P. 5), which will bring the budget over the need to buy advertising, public relations, does not cause perception in creating various promotions.
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