Hayder G, Perumulselum P, Alhussian H. Treatment of Domestic Wastewater with Fixed Bed Biofilm Reactor. IJET [Internet]. 2018 Nov. 30 [cited 2024 May 5];7(4.35):22-5. Available from: https://www.sciencepubco.com/index.php/ijet/article/view/22314