Chanakarn Khamkaew. 2010. Seasonal variation of nitrogen dioxide, PM10 and its major ion composition in Chiang Mai province. Faculty of Science, Chiang Mai University;
Chanakarn Khamkaew. (2010) Seasonal variation of nitrogen dioxide, PM10 and its major ion composition in Chiang Mai province . Chiang Mai University/Chiang Mai.
Chanakarn Khamkaew. Seasonal variation of nitrogen dioxide, PM10 and its major ion composition in Chiang Mai province. . Chiang Mai:Chiang Mai University, 2010.
Chanakarn Khamkaew. (2010) Seasonal variation of nitrogen dioxide, PM10 and its major ion composition in Chiang Mai province . Chiang Mai University/Chiang Mai.