Kwon, Hyeok June, et al. “Comparative Evaluation of Ammonium Removal Activity and Microbial Community Structure in Field-Derived Nitrifying Inocula”. International Journal of Aquatic Research and Environmental Studies, vol. 6, no. S2, June 2026, pp. 35-44, https://doi.org/10.70102/IJARES/V6S2/6-S2-565.