Wasana Farrelly. 2011. Capability assessment of roadside tree on nitrogen dioxide removal from Chiang Mai urban air. Field of Study Environmental Science, Chiang Mai University;
Wasana Farrelly. (2011) Capability assessment of roadside tree on nitrogen dioxide removal from Chiang Mai urban air . Chiang Mai University/Chiang Mai.
Wasana Farrelly. Capability assessment of roadside tree on nitrogen dioxide removal from Chiang Mai urban air. . Chiang Mai:Chiang Mai University, 2011.
Wasana Farrelly. (2011) Capability assessment of roadside tree on nitrogen dioxide removal from Chiang Mai urban air . Chiang Mai University/Chiang Mai.