Sirin Losuvarat. 2008. Factors affecting work efficiency : staff at Foster Wheeler Service (Thailand) Limited. Bangkok:Thammasat University; DOI : https://doi.nrct.go.th/ListDoi/listDetail?Resolve_DOI=10.14457/TU.the.2008.287
Sirin Losuvarat. (2008) Factors affecting work efficiency : staff at Foster Wheeler Service (Thailand) Limited (รายงานผลงานวิจัย). Thammasat University:Bangkok. DOI : https://doi.nrct.go.th/ListDoi/listDetail?Resolve_DOI=10.14457/TU.the.2008.287
Sirin Losuvarat. Factors affecting work efficiency : staff at Foster Wheeler Service (Thailand) Limited. Bangkok:Thammasat University, 2008. DOI : https://doi.nrct.go.th/ListDoi/listDetail?Resolve_DOI=10.14457/TU.the.2008.287
Sirin Losuvarat. (2008) Factors affecting work efficiency : staff at Foster Wheeler Service (Thailand) Limited (รายงานผลงานวิจัย). Thammasat University:Bangkok. DOI : https://doi.nrct.go.th/ListDoi/listDetail?Resolve_DOI=10.14457/TU.the.2008.287