Slil Siripong. 2005. Diversity assessment of nitrifying bacterial populations in wastewater activated sludge. Field of Study Civil and Environmental Engineering, Northwestern University;
Slil Siripong. (2005) Diversity assessment of nitrifying bacterial populations in wastewater activated sludge . Northwestern University/Evanston.
Slil Siripong. Diversity assessment of nitrifying bacterial populations in wastewater activated sludge. . Evanston:Northwestern University, 2005.
Slil Siripong. (2005) Diversity assessment of nitrifying bacterial populations in wastewater activated sludge . Northwestern University/Evanston.