©2013 National Research Council of Thailand
Suppawate Thongprayoon. 2009. Factors influencing on microbiological quality of groundwater case study in Bangkla district, Chachoengsao province and Kosumphisai dstrict, Mahasarakham province. Faculty of Environment and Resource Studies, Mahidol University;
Suppawate Thongprayoon. (2009) Factors influencing on microbiological quality of groundwater case study in Bangkla district, Chachoengsao province and Kosumphisai dstrict, Mahasarakham province . Mahidol University/Bangkok.
Suppawate Thongprayoon. Factors influencing on microbiological quality of groundwater case study in Bangkla district, Chachoengsao province and Kosumphisai dstrict, Mahasarakham province. . Bangkok:Mahidol University, 2009.
Suppawate Thongprayoon. (2009) Factors influencing on microbiological quality of groundwater case study in Bangkla district, Chachoengsao province and Kosumphisai dstrict, Mahasarakham province . Mahidol University/Bangkok.