When a customer passes through the buyer decision process, he or she will start with recognizing problems followed by information search. In former process, the customer recognizes problems or needs that are aroused from internal or external stimuli, for example, feeling need of a car for transportation, or showing off of a new car by friends or neighbors. For latter process, once the customer is interested in buying a new car, he or she may undertake an information search to get brand awareness and knowledge about brand choices available to the customer. The information can be obtained from several sources including personal and commercial sources, which are the two most influential major factors, for example, friendly information from family and friends (personal), or advertising of Honda new model on TV (commercial). Commercial sources normally inform the buyer, but personal sources legitimize or evaluate products for the buyer (Kotler, Brown, Burton, Deans & Armstrong, 2010).
The third process of the buyer decision process is the evaluation of alternatives. In this stage, the customer will choose the most suit one to his interest among