Korakod Sangmala. 2008. Passenger satisfaction with the interpersonal communication of the Finnair passengers service representatives at Suvarnnabhumi Airport : a comparative study between Thai and foreign passengers. Bangkok:Thammasat University; DOI : https://doi.nrct.go.th/ListDoi/listDetail?Resolve_DOI=10.14457/TU.res.2008.31
Korakod Sangmala. (2008) Passenger satisfaction with the interpersonal communication of the Finnair passengers service representatives at Suvarnnabhumi Airport : a comparative study between Thai and foreign passengers (รายงานผลงานวิจัย). Thammasat University:Bangkok. DOI : https://doi.nrct.go.th/ListDoi/listDetail?Resolve_DOI=10.14457/TU.res.2008.31
Korakod Sangmala. Passenger satisfaction with the interpersonal communication of the Finnair passengers service representatives at Suvarnnabhumi Airport : a comparative study between Thai and foreign passengers. Bangkok:Thammasat University, 2008. DOI : https://doi.nrct.go.th/ListDoi/listDetail?Resolve_DOI=10.14457/TU.res.2008.31
Korakod Sangmala. (2008) Passenger satisfaction with the interpersonal communication of the Finnair passengers service representatives at Suvarnnabhumi Airport : a comparative study between Thai and foreign passengers (รายงานผลงานวิจัย). Thammasat University:Bangkok. DOI : https://doi.nrct.go.th/ListDoi/listDetail?Resolve_DOI=10.14457/TU.res.2008.31