Pentip Trongsawad. 2002. Treatment of wastewater from community with constructed wetland. Field of Study Environmental Biology, Mahidol University;
Pentip Trongsawad. (2002) Treatment of wastewater from community with constructed wetland . Mahidol University/Bangkok.
Pentip Trongsawad. Treatment of wastewater from community with constructed wetland. . Bangkok:Mahidol University, 2002.
Pentip Trongsawad. (2002) Treatment of wastewater from community with constructed wetland . Mahidol University/Bangkok.