Kullapa Soratana. 2004. Performance characterization of biological wastewater treatment systems using 5-day biodegradable dissolved organic carbon and ultraviolet absorbance at 254 nanometers. Field of Study Environmental Management, Chulalongkorn University;

Kullapa Soratana. Performance characterization of biological wastewater treatment systems using 5-day biodegradable dissolved organic carbon and ultraviolet absorbance at 254 nanometers. . Bangkok:Chulalongkorn University, 2004.

Kullapa Soratana. (2004) Performance characterization of biological wastewater treatment systems using 5-day biodegradable dissolved organic carbon and ultraviolet absorbance at 254 nanometers . Chulalongkorn University/Bangkok.