The effect of motivation in learning second language .......Motivation is one of the basic factors that determine success and failure in L2 learning, thus motivational strategies should be regarded as a crucial aspect of the theoretical analysis of L2 motivation (Dörnyei & Cheng, 2007) : این مجموعه شامل Introduction 1.1. Statement of the Problem 1.2. Significance of the Study 1.3. Statement of the Research Questions میباشد. ...