1. Choi, J., Kim, Y., & Yi, E. (2010). Colorimetric properties and color sensibility factors for naturally dyed fabrics by microbial prodiginine colorant. Journal of the Science of Emotion & Sensibility, 13(4), 693-702.
2. Choi, Y. J., Ryu, H. S., & Kweon, S. A. (2005). A study of color image on silk fabrics dyed with yellow natural materials. Journal of the Korean Society of Clothing and Textiles, 29(6), 868-876.
3. Colordrop. (n.d.). Retrieved from https://colordrop.io