Napasawan Khongkham. 2008. Effect of ammonia oxidzing bacteria communities in enriched nitrifying activated sludge and sludge from full scale wastewater treatment plants on degradation of 17a-ethylestradiol via co-metabolism. Field of Study Environmental Management, Chulalongkorn University;

Napasawan Khongkham. Effect of ammonia oxidzing bacteria communities in enriched nitrifying activated sludge and sludge from full scale wastewater treatment plants on degradation of 17a-ethylestradiol via co-metabolism. . Bangkok:Chulalongkorn University, 2008.

Napasawan Khongkham. (2008) Effect of ammonia oxidzing bacteria communities in enriched nitrifying activated sludge and sludge from full scale wastewater treatment plants on degradation of 17a-ethylestradiol via co-metabolism . Chulalongkorn University/Bangkok.