1. Advanced Textiles Source. (2013). Ecoalf upcycles ocean trash into yarns for fabric. Available at http://advancedtextilessource.com/2016/02/ecoalf-upcycles-ocean-trash-into-yarns-for-fabric/ . (18 May 2016).
2. Agrawal, Y., Kapoor, R., Malik, T. & Raghuwanshi, V. (2015). Recycling of plastic bottles into yarn & fabric. Available at http://www.textilevaluechain.com/index.php/article/technical/item/247-recycling-of-plastic-bottles-into-yarn-fabric . (12 May 2016).
3. Aizenshtein, E. (2009). Polyester fibres continue to dominate on the world textile raw materials balance sheet. Fibre Chemistry, 41(1), Springer Science+Business Media, Inc.
4. Aquafil Global. (2016). The Econyl ® project. Available at http://www.aquafil.com/sustainability/the-econyl-project/ . (21 May 2016).
5. Beitch, S. (2015). The North face incorporates REPREVE Technology into Denali Jacket [Online]. Available at https://sourcingjournalonline-com.prox.lib.ncsu.edu/north-face-incorporates-repreve-technology-denali-jacket-sb/ . Accessed April 26, 2016.