Luo และผู้แต่งคนอื่นๆ. 1997. Risk assessment of airborne bacteria and fungi in Chiang Mai city. Graduate School, Chiang Mai University;
Luo และผู้แต่งคนอื่นๆ. (1997) Risk assessment of airborne bacteria and fungi in Chiang Mai city . Chiang Mai University/Chiang Mai.
Luo และผู้แต่งคนอื่นๆ. Risk assessment of airborne bacteria and fungi in Chiang Mai city. . Chiang Mai:Chiang Mai University, 1997.
Luo และผู้แต่งคนอื่นๆ. (1997) Risk assessment of airborne bacteria and fungi in Chiang Mai city . Chiang Mai University/Chiang Mai.