Shahid, Gulshan, et al. “Xylanase Activity and Kinetics Comparison During Pulping of Gossypium Arboreum and Gossypium Barbadense”. Asian Journal of Chemistry, vol. 24, no. 1, Oct. 2011, pp. 441-3, https://asianpubs.org/index.php/ajchem/article/view/16026.