↑ Mogahzy, Y. E. (2009). Engineering Textiles: Integrating the Design and Manufacture of Textile Products (edisi First). Woodhead Publishing. m/s. 362. ISBN978-1-84569-048-9.
↑ Bellis, Mary. "Levi Strauss - The History of Blue Jeans". About.com. Dicapai 25 Ogos 2015. "Levi Strauss had the canvas made into waist overalls. Miners liked the pants, but complained that they tended to chafe. Levi Strauss substituted a twilled cotton cloth from France called "serge de Nimes." The fabric later became known as denim and the pants were nicknamed blue jeans." In French of Nimes or De Nimes shortened to Denim
