عنوان مقاله [English]
نویسندگان [English]چکیده [English]
Marketing research as one of the most important tools in forming executive decisions has become a dominant subject in today's companies. So that in many companies with the modem marketing approach, decision-making for most of critical subjects is based on marketing research results. One of the key issues in design and implementation of a marketing research is familiarity with fundamentals, rules and specific techniques needed in these researches. So, the main goal of this research is, to perform a marketing research in order to identify the most effective factors in customers' loyalty. To do that, first we studied some existing models in customers' loyalty, Analyzing and categorizing their strengths and weaknesses. Then we considered the most proper.