This research aim is to know the influence of the brand awareness, perceived quality , brand associations , brand loyalty to the Purchasing Decision of Blackberry Smartphone. The type of research that used is explanatory research which is using population of a number of active student from Undergraduate Program of Bussiness Administration .Population that is used is about 88 respondents with sampleĀ  taken method using purposive sampling ( sample taken method using some considerations). The technique to get data in this research is interview and questioner as the collecting data instrument.The result of the statistic test and F test known that the brand awareness , perceived quality , brand association , and brand loyalty simultaneously have positive influence and significant to the purchasing decision. This can be seen from the result test of determination coefficient influence of brand awareness , perceived quality , brand association , and brand loyalty simultaneously have positive influence and significant to the purchasing decision as big as 0,604 or 60,4 %.
                        
                        
                        
                        
                            
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