Narumon Tiangviriya และผู้แต่งคนอื่นๆ. (2006) Physical and chemical characteristics of particulate matter at various sizes in Chiang Mai ambient air. Chulalongkorn University:ม.ป.ท.Narumon Tiangviriya และผู้แต่งคนอื่นๆ. 2006. Physical and chemical characteristics of particulate matter at various sizes in Chiang Mai ambient air. ม.ป.ท.:Chulalongkorn University;Narumon Tiangviriya และผู้แต่งคนอื่นๆ. Physical and chemical characteristics of particulate matter at various sizes in Chiang Mai ambient air. ม.ป.ท.:Chulalongkorn University, 2006. Print.