Khalil, Amal, and huda Jassim. “IMPROVING OF BIOGAS PRODUCTION USING DIFFERENT PRETREATMENT OF RICE HUSK INOCULATED WITH OSTRICH DUNG”. The Journal of Engineering Research [TJER] 18, no. 1 (October 6, 2021): 1–11. Accessed December 22, 2024. https://journals.squ.edu.om/index.php/tjer/article/view/3027.