Al Mamun, Abdullah, Mohd Amiruddin Abd Rahman, Md Zahangir Alam, S.M. Abu Sayem, and Radhia Nedjai. 2022. “EFFECT OF FIXED FILAMENTOUS MEDIA ON BIOLOGICAL WASTEWATER TREATMENT”. Chemical and Natural Resources Engineering Journal (Formally Known As Biological and Natural Resources Engineering Journal) 6 (2):1-7. https://doi.org/10.31436/cnrej.v6i2.71.