Alex, A., F. and Maria, R., D. (2003, Jun). Validation and reliability of the Baecke questionnaire for the evaluation of habitual physical activity in adult men. Original Article 9(5), 129-135. https://doi.org/10.1590/s1517-86922003000300002 Ali, H., A., Ramazan, A., & Abdullah, A. (2010, December). Analyzing undergraduate students' self confidence levels in terms of some variables. Procedia-Social and Behavioral Sciences, 5, 1205-1209.https://doi.org/10.1016/j.sbspro.2010.07.262

Beattie, S., Hardy, L., Savage, J., Woodman, T., and Callow, N. (2011). Development and validation of a trait measure of robustness of self-confidence. Psychol. Sport Exerc. 12, 184-191. https://doi.org/10.1016/j.psychsport.2010.09.008

Berbari, G. (2018, March 22). How Working Out Makes You a More Confident Person, According to Science. Elite Daily. https://www.elitedaily.com/p/how-working-out-makes-you-more- confident-from-the-inside-out-according-to-science-8565734

Bull, F. C., Al-Ansari, S. S., Biddle, S., Borodulin, K., Buman, M. P., Cardon, G., ... & Willumsen, J. F. (2020). World Health Organization 2020 guidelines on physical activity and sedentary behaviour. British journal of sports medicine, 54(24), 1451-1462. https://doi.org/10.1136 /bjsports-2020-102955

Cherry, K. (2021). 11 Signs of Low Self-Esteem. Very Well Mind. https://www.verywellmind. com/signs-of-low-self-esteem-5185978

Durai, C., and Anantharaj G. (2017). Comparison of self-motivation and self-confidence between sportsman and non-sportsman. International Journal of Advance Research and Innovative Ideas in Education 3(5), 1894-1897

Ferkany, M. (2008). The educational importance of self-esteem. Journal of Philosophy of Education, 42(1), 119-132. https://doi.org/10.1111/j.1467-9752.2008.00610.x

Ferron, C., Naring, F., Cauderay, M., and Michaud, P., A. (1999, April). Sport activity in adolescence: associations with health perceptions and experimental behaviours. Health Education Research, 14(2), 225–233. https://doi.org/10.1093/her/14.2.225 Ginis, K. M., Bassett-Gunter, R. L., & Conlin, C. (2012). Body image and exercise. Oxford handbook of exercise psychology, 55-75. https://doi.org/10.1093/oxfordhb/9780195394313.013.0004 Ilhan, A., & Bardakci, U. S. (2020). Analysis on the Self-Confidence of University Students According to Physical Activity Participation. African Educational Research Journal, 8(1), 111-114.

Kamas. L. & Preston. A. (2012). The Importance of Being Confidence; Gender, career choice and willingness to compete. Journal of Economic Behavior and Organization, 83(1), 82-97. https://doi.org/10.1016/j.jebo.2011.06.013

Kohli, M. (2011, November 20). How Exercise Boosts Confidence. India Times.

Lawrence, D. (1973). Improving Reading through Counselling. London: Ward Lock. https://doi.org/10. 1002/1520-6807(197610)13:4<493::aid-pits2310130431>3.0.co;2-4

Nandini, M., C., Fred, C., Stephen, B., & John, B. (2020). Effects of Early Sport Participation on Self- esteem and Happiness. The Sport Journal.

Neha, P., G., Erlenbach, E. and Engels, H., J. (2021, January 19). Exercise and self-esteem model: Validity in a sample of healthy female adolescents. Current Psychology, 1-9. https://doi.org/1 0.1007/s12144-021-01390-7

Prihadi K, Chua M. (2012). Students' Self-Esteem at School: The Risk, the Challenge, and the Cure. Journal of Education and Learning, 6 (1), 1-14. https://doi.org/10.11591/edulearn.v6i1.185 Renan, P., M., Gabriel, L., H., C., Paul, H., P., H., Emerson, D., M. and Philip, D., G., S. (2021). The efficient assessment of self-esteem: proposing the brief rosenberg self-esteem scale. Applied Research in Quality of Life, 17(2), 931-947. https://doi.org/10.1007/s11482-021-09936-4

Richard D. O, K. L.-B. (2018). Physical Activity. U.S. Department of Health and Human Services, 23- 24.

Schaefer, P., & Brennan, J. (2009). Psychological benefits of exercise. The Ohio Family Physician, 30- 32. https://doi.org/10.1016/s0300-7073(09)70735-2

Scott Strader, L. F. (2022). What is Self-Confident? University of South Florida. From University of South Florida Website: https://www.usf.edu/student-affairs/counseling-center/top-concerns/what-is- selfconfidence.aspx

Seyed Hojjat Zamani Sani, Z. F.-T. (2016). Physical activity and self-esteem: testing direct and indirect relationships associated with psychological and physical mechanisms. Neuropsychiatric disease and treatment, 2617-2625. https://doi.org/10.2147/ndt.s116811

Shang, Y., Xie, H. D., & Yang, S. Y. (2021). The relationship between physical exercise and subjective well-being in college students: The mediating effect of body image and self-esteem. Frontiers in Psychology, 12, 658935. https://doi.org/10.3389/fpsyg.2021.658935

Sumaira, K., Tayyaba, K., Jin, W., Sanchez, M., L., Z., Saima, K. and Haroona, Q. (2018). Physical Activity and Academic Performance: The Mediating Effect of Self-Esteem and Depression. MDPI, 10(10), 3633. https://doi.org/10.3390/su10103633 Warburton, D. E., Nicol, C. W., & Bredin, S. S. (2006). Health benefits of physical activity: the evidence. Cmaj, 174(6), 801-809.. https://doi.org/10.1503/cmaj.051351