1- ASTM (American Standards on Textile Materials, Designations: D-1175).
2- ASTM (American Standards on Textile Materials, Designations: D-3776).
3- ASTM (American Standards on Textile Materials, Designations: D-5035).
4- British Stander for Fabrics Water Absorption )2001(, BS3702.
5- http://www.swicofil.com/companyinfo/manualtwistdirection.html, Search Date: 28 March 2022.
7- Kulkarni, H.S., (1992), TWO-FOR-ONE Technology & Techniques for spun yarn, Murthy Tecoya Publication, India.
8- Nachane. R. P., (August 1998), Upholstery Fabrics & Dust, The Indian Textile Journal.
STAUBLI, Dobby, (operating system 05-2013), Type 2670B/2.