Kuzniak, S., A. Rabbani, W. Heo, J. Ruiz-Menjivar, and J. Grable. “The Grable and Lytton Risk-Tolerance Scale: A 15-Year Retrospective”. Financial Services Review, vol. 24, no. 2, June 2015, pp. 177-92, doi:10.61190/fsr.v24i2.3240.