Cuong, Do Bien, et al. “Ammonia-Removal Efficiency of a Novel Acinetobacter Calcoaceticus Strain Isolated from Industrial Wastewater of Ninh Binh Coal Nitrogenous Fertilizer Plant”. Vietnam Journal of Science and Technology, vol. 56, no. 2, Apr. 2018, pp. 216-23, doi:10.15625/2525-2518/56/2/10414.