1. A Study on the Evaluation Characteristics of Personal Color Diagnosis and Results: for Job preparation student
2. Han, S. Y. (2009). A study on the skin colors and personal color for women over sixty, Unpublished master's thesis. Hong ik University, Seoul.
3. Hong, S. N., Bang, H. J., & Lee, S. E. (2012). A study of the difference in makeup use by personal color perception. The Korean Society of Beauty And Art, 13(3), 133-147.
4. Jang, E. Y. (2022). The effect of personal color consulting experience on appearance recognition and appearance management behavior. Unpublished master's thesis, Konkuk University, Seoul.
5. Classifying Personal Colors Using Lipstick Colors