Attribution
Non-Commercial
No Derivative Works
Trai Pekthong. 2008. The developing of trophic Diatoms for water quality monitoring in Kok river Chiang Rai province. Chiang Rai:Mae Fah Luang University;
Trai Pekthong. (2008) The developing of trophic Diatoms for water quality monitoring in Kok river Chiang Rai province (รายงานผลงานวิจัย). Mae Fah Luang University:Chiang Rai.
Trai Pekthong. The developing of trophic Diatoms for water quality monitoring in Kok river Chiang Rai province. Chiang Rai:Mae Fah Luang University, 2008.
Trai Pekthong. (2008) The developing of trophic Diatoms for water quality monitoring in Kok river Chiang Rai province (รายงานผลงานวิจัย). Mae Fah Luang University:Chiang Rai.
