Wannasiri Charee. 2007. Utilization of polyvinyl alcohol (PVA) with coal ash to immobilize nitrifying bacteria for ammonia-nitrogen removal in shrimp culture wastewater recirculation system. Field of Study Environmental Technology, Mahidol University;
Wannasiri Charee. (2007) Utilization of polyvinyl alcohol (PVA) with coal ash to immobilize nitrifying bacteria for ammonia-nitrogen removal in shrimp culture wastewater recirculation system . Mahidol University/Bangkok.
Wannasiri Charee. Utilization of polyvinyl alcohol (PVA) with coal ash to immobilize nitrifying bacteria for ammonia-nitrogen removal in shrimp culture wastewater recirculation system. . Bangkok:Mahidol University, 2007.
Wannasiri Charee. (2007) Utilization of polyvinyl alcohol (PVA) with coal ash to immobilize nitrifying bacteria for ammonia-nitrogen removal in shrimp culture wastewater recirculation system . Mahidol University/Bangkok.