1. Y. Ohno, CIE Fundamentals for Color Measurements, IS & T NIP16 Conference, 2000.
2. https://www.xrite.com/de/service-support/whiteness_index.
3. Bleach clean up;Athalye,2014
4. A Handbook of Textiles;Collier,1970
5. Principles of Textile Finishing;Kumar,2017