Imran, Muhammad, Sheeza Bano, Sadia Nazir, Arshad Javid, Muhammad Javaid Asad, and Amara Yaseen. “Cellulases Production and Application of Cellulases and Accessory Enzymes in Pulp and Paper Industry: A Review”. PSM Biological Research 4, no. 1 (January 31, 2019): 29-39. Accessed June 25, 2019. https://journals.psmpublishers.org/index.php/biolres/article/view/243.