| บรรณานุกรม | American Conference of Governmental Industrial Hygienists.TLVs and BEIs : Based on the documentation of the threshold limit values for chemical substances and physical agents biological exposure indices.2011.) |
| ชื่อทรัพยากร | TLVs and BEIs : Based on the documentation of the threshold limit values for chemical substances and physical agents biological exposure indices |
| ชื่อผู้แต่ง | American Conference of Governmental Industrial Hygienists( 1) |
| แหล่งทรัพยากร |