Piyaphong Somsap และ Sonporn Chantara. (2011) Use of cations binding on atmospheric PM10 as tracers of biomass burning /. Chiang Mai University,:ม.ป.ท.Piyaphong Somsap และ Sonporn Chantara. 2011. Use of cations binding on atmospheric PM10 as tracers of biomass burning /. ม.ป.ท.:Chiang Mai University,;Piyaphong Somsap และ Sonporn Chantara. Use of cations binding on atmospheric PM10 as tracers of biomass burning /. ม.ป.ท.:Chiang Mai University, 2011. Print.