Apiradee Sriopas. 1999. A devised appliance for toluene detector tube as a direct reading instrument. Faculty of Graduate Studies, Mahidol University;
Apiradee Sriopas. (1999) A devised appliance for toluene detector tube as a direct reading instrument . Mahidol University/Bangkok.
Apiradee Sriopas. A devised appliance for toluene detector tube as a direct reading instrument. . Bangkok:Mahidol University, 1999.
Apiradee Sriopas. (1999) A devised appliance for toluene detector tube as a direct reading instrument . Mahidol University/Bangkok.