Ismail, Zainab, and Nazik Noori. “Anaerobic Co-Digestion of Giant Reed for Biogas Recovery”. Journal of Engineering 24, no. 3 (March 1, 2018): 68-83. Accessed October 22, 2020. http://joe.uobaghdad.edu.iq/index.php/main/article/view/j.eng.2018.03.06.