This research aims to study the factors of 1) mix of marketing services that affect the purchasing decisions of consumers, car audio, in the District of Bang BUA thong, Nonthaburi, 2) to study the behaviour in choosing car audio installation of those 86000.In the District of Bang BUA thong, Nonthaburi The population used in this research Group customer service audio car accessories in the District of Bang BUA thong, Nonthaburi. 495 people count determines the size of the sample by using the formula determines the size of the sample, sample of 221 people and sampling come by way of simple research. Information gathering tools is the query statistics data analysis include percentage frequency values, average, standard deviation, and t-test, f-test test, and a pair with Chef's way Cafe.
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