Seo, E. H., Lee, D. Y., Choo, I. H., Kim, S. G., Kim, K. W., Youn, J. C. …Woo, J. I. (2008). Normative study of the Stroop Color and Word Test in an educationally diverse elderly population. International Journal of Geriatric Psychiatry, 23(10), 1020-1027. doi:10.1002/gps.2027