Ajzen, I. (1991). The theory of planned behavior. Organizational Behavior and Human Decision Processes, 50(2), 179-211.

Blazar, D., & Kraft, M. A. (2017). Teacher and Teaching Effects on Students' Attitudes and Behaviors. Educational Evaluation and Policy Analysis, 39(1), 146-170.

Fishbein, M., & Ajzen, I. (1975). Belief, attitude, intention, and behavior: An introduction to theory and research. Addison-Wesley.

Gendall, P., & Holdershaw, J. (2008). The relationship between television advertising, children's viewing and their requests to Father Christmas. Journal of Marketing Management, 24(3-4), 473-488.

Katz, D. (1960). The functional approach to the study of attitudes. Public Opinion Quarterly, 24(2), 163-204.

Tajfel, H., & Turner, J. C. (1979). An integrative theory of intergroup conflict. In W. G. Austin & S. Worchel (Eds.), The social psychology of intergroup relations (pp. 33-47). Brooks/Cole.

Gardner, R. C., & Lambert, W. E. (1972). Attitudes and motivation in second-language learning. In E. Bialystok (Ed.), Language Processing in Bilingual Children (pp. 77-99). Cambridge University Press.

Kim, S. J., & Lee, Y. H. (2011). The relationship between English language proficiency and the national economic performance: Focusing on non-English-speaking OECD countries. The Journal of the Korea Contents Association, 11(1), 329-339. (https://hbr.org/2013/11/countries-with-better-english-have-better-economies)

Gagina, N. V., & Los, O. V. (2016). Fostering Economic Development of Ukraine Through Increasing English Proficiency. Науковий вісник Полісся, 1(4 (8)), 164-167.