Suntaya Mingmongkol และ Pongsak Noophun. (2012) Nitrous oxide emission sampling method for wastewater treatment plant with biological nitrogen removal. Kasetsart University,:ม.ป.ท.Suntaya Mingmongkol และ Pongsak Noophun. 2012. Nitrous oxide emission sampling method for wastewater treatment plant with biological nitrogen removal. ม.ป.ท.:Kasetsart University,;Suntaya Mingmongkol และ Pongsak Noophun. Nitrous oxide emission sampling method for wastewater treatment plant with biological nitrogen removal. ม.ป.ท.:Kasetsart University, 2012. Print.