Calomot และผู้แต่งคนอื่นๆ. 1997. Risk assessment of lead accumulation in soil of Chiang mai city using the geographic information system (GIS). Graduate School, Chiang Mai University;
Calomot และผู้แต่งคนอื่นๆ. (1997) Risk assessment of lead accumulation in soil of Chiang mai city using the geographic information system (GIS) . Chiang Mai University/Chiang Mai.
Calomot และผู้แต่งคนอื่นๆ. Risk assessment of lead accumulation in soil of Chiang mai city using the geographic information system (GIS). . Chiang Mai:Chiang Mai University, 1997.
Calomot และผู้แต่งคนอื่นๆ. (1997) Risk assessment of lead accumulation in soil of Chiang mai city using the geographic information system (GIS) . Chiang Mai University/Chiang Mai.