Tawach Prechthai. 2001. Relationship between phytoplankton and water quality in the Tha Chin river. Field of Study Environmental Sanitation, Mahidol University;
Tawach Prechthai. (2001) Relationship between phytoplankton and water quality in the Tha Chin river . Mahidol University/Bangkok.
Tawach Prechthai. Relationship between phytoplankton and water quality in the Tha Chin river. . Bangkok:Mahidol University, 2001.
Tawach Prechthai. (2001) Relationship between phytoplankton and water quality in the Tha Chin river . Mahidol University/Bangkok.