Abu Hasan, H.; Hafizuddin Muhamad, M.; Nadia Mohd Sabri, N.; Rozaimah Sheikh Abdullah, S. Biofilters As Alternative Method for Ammonia Removal in Water Treatment Plant. IJET 2019, 8 (1.2), 256-261. https://doi.org/10.14419/ijet.v8i1.2.24911.