YUSUF, I.; RABIU GAMAWA, A.; HARUNA, M. Oxidation of Ammonia in Fish Ponds to Nitrates Using Free and Immobilized Nitrifying Bacteria: Enhancing Fish Pond Water Quality with free and immobilized bacteria. UMYU Journal of Microbiology Research (UJMR), [S. l.], v. 8, n. 2, p. 236–245, 2023. DOI: 10.47430/ujmr.2382.027. Disponível em: https://ujmr.umyu.edu.ng/index.php/ujmr/article/view/410. Acesso em: 16 jul. 2024.