G. Shahid, A. Jabbar, M. Zahid Qureshi, M. Ikram Aujla, M. Suleman, and M. Sohail, “Xylanase Activity and Kinetics Comparison During Pulping of Gossypium arboreum and Gossypium barbadense”, ajc, vol. 24, no. 1, pp. 441–443, Oct. 2011.