1. Toward a general theory of motivation: Problems, challenges, opportunities, and the big picture;Baumeister;Motivation and Emotion,2016
2. Creswel. (2017). Choosing a mixed methods design. In Library Philosophy and Practice (Vol. 2017, Issue 1, pp. 58–89).
3. Predictors of English Medium Instruction academic success: English proficiency versus first language medium;Curle;System,2020
4. Self-Determination theory;Deci,2015
5. Teaching and researching motivation. Harlow, Essex. Longman.(2003)’Attitudes, orientations and motivations in language learning: advances in theory, research and applications;Dörnyei;Language Learning,2001