Thamarat Sukjeeradet และ Prayad Pokethitiyook. (2010) Bioaugmentation of activated sludge with selected bacterial strains. Mahidol University:ม.ป.ท.Thamarat Sukjeeradet และ Prayad Pokethitiyook. 2010. Bioaugmentation of activated sludge with selected bacterial strains. ม.ป.ท.:Mahidol University;Thamarat Sukjeeradet และ Prayad Pokethitiyook. Bioaugmentation of activated sludge with selected bacterial strains. ม.ป.ท.:Mahidol University, 2010. Print.