Alia Abbas Hassan, Lubna Abdul Jabbar Al-Zubaidi and Tasnim Fahem Chyad 2024. The Effect of the Mixing Ratio of Sewage Sludge and Organic Fraction of Municipals Solid Waste on Biogas Production in Anaerobic Digestion Process: https://doi.org/10.46610/JoWRPS.2024.v09i03.003. Journal of Water Resources and Pollution Studies. (Dec. 2024), 32–47.