Rungtiwa Piamtongkam. 2004. Selection of bacteria for liquid biofertilizer production from solid waste. Field of Study Biotechnology, Chulalongkorn University;
Rungtiwa Piamtongkam. (2004) Selection of bacteria for liquid biofertilizer production from solid waste . Chulalongkorn University/Bangkok.
Rungtiwa Piamtongkam. Selection of bacteria for liquid biofertilizer production from solid waste. . Bangkok:Chulalongkorn University, 2004.
Rungtiwa Piamtongkam. (2004) Selection of bacteria for liquid biofertilizer production from solid waste . Chulalongkorn University/Bangkok.