Kanogwan Lapkeaw. (2000) Laboratory hazardous waste management. Mahidol University,:ม.ป.ท.Kanogwan Lapkeaw. 2000. Laboratory hazardous waste management. ม.ป.ท.:Mahidol University,;Kanogwan Lapkeaw. Laboratory hazardous waste management. ม.ป.ท.:Mahidol University, 2000. Print.