Open Science Research Excellence
Puntipar Sonthiphand and  Tawan Limpiyakorn,  Communities of Ammonia-oxidizing Archaea and Bacteria in Enriched Nitrifying Activated Sludge.   journal   = {International Journal of Biological, Biomolecular, Agricultural, Food and Biotechnological Engineering}, [online]. World Academy of Science, Engineering and Technology. April 2010, vol. 40(4). 203 - 206[viewed 19 April 2019]. Available from: http://waset.org/publications/12107.