1. Adams, D. (2002). Education and National Development: Priorities, Policies, and Planning. Education in Developing Asia, Volume 1. http://cerc.edu.hku.hk/wp-content/uploads/2013/11/Education-and-National-Development-Priorities-Policies-and-Planning.pdf
2. Aida, Y. (1994). Examination of Horwitz, Horwitz, and Cope's Construct of Foreign Language Anxiety: The Case of Students of Japanese. The Modern Language Journal, 78(2), 155-168. doi:10.2307/329005
3. Ali, R., & Bakar, A. (2019). The Probability to Memorize and Understand Textbook Information: Socioeconomic Class as the Predictor for Cognitive Processing Strategies in Pakistani Education System. Pakistan Journal of Social Sciences (PJSS), 39(1).
4. Baker, E. H. (2014). Socioeconomic Status, Definition (E. H. S. S. Baker, Definition. In The Wiley Blackwell Encyclopedia of Health, Illness, Behavior, and Society (eds ). https://doi.org/10.1002/9781118410868.wbehibs395, Trans.). In W. C. Cockerham, R. Dingwall, & S. Quah (Eds.), The Wiley Blackwell Encyclopedia of Health, Illness, Behavior, and Society (pp. 2210-2214).
5. Bernstein, D. (2006). The impact of implicit theories of intelligence on the motivation of students with learning challenges. (3210259 Ph.D.), Fordham University, Ann Arbor. Retrieved from https://www.proquest.com/dissertations-theses/impact-implicit-theories-intelligence-on/docview/305332749/se-2?accountid=135034 ProQuest Dissertations & Theses Global database.