1. Browne, M. W., & Cudeck, R. (1993). Alternative ways of assessing model fit. In Bollen, K. A., & Long, J. S. (Eds.), Testing structural equation models (pp. 136–162). Newbury Park, CA: Sage Publications.
2. Buckingham, M., & Clifton, D. O. (2001). Now, discover your strengths. New York: The Free press.
3. Cohen, J. (1988). Statistical power analysis for the behavioral sciences (2nd ed.). Hillsdale, NJ: Lawrence Erlbaum Associates.
4. Duan, W., Li, J., & Mu, W. (2017). Psychometric characteristics of strengths knowledge scale and strengths use scale among adolescents. Journal of Psychoeducational Assessment. Advance online publication. doi: 10.1177/0734282917705593.
5. Fredrickson, B. L. (2009). Positivity: Groundbreaking research reveals how to embrace the hidden strength of positive emotions, overcome negativity, and thrive. New York: Crown Publishing Group.