Sakonkan Na Songkhla. 2010. A study of degree of Thai cabin crew loyalty to Thai Airways International Public Company Limited. Bangkok:Thammasat University; DOI : https://doi.nrct.go.th/ListDoi/listDetail?Resolve_DOI=10.14457/TU.the.2010.7
Sakonkan Na Songkhla. (2010) A study of degree of Thai cabin crew loyalty to Thai Airways International Public Company Limited (รายงานผลงานวิจัย). Thammasat University:Bangkok. DOI : https://doi.nrct.go.th/ListDoi/listDetail?Resolve_DOI=10.14457/TU.the.2010.7
Sakonkan Na Songkhla. A study of degree of Thai cabin crew loyalty to Thai Airways International Public Company Limited. Bangkok:Thammasat University, 2010. DOI : https://doi.nrct.go.th/ListDoi/listDetail?Resolve_DOI=10.14457/TU.the.2010.7
Sakonkan Na Songkhla. (2010) A study of degree of Thai cabin crew loyalty to Thai Airways International Public Company Limited (รายงานผลงานวิจัย). Thammasat University:Bangkok. DOI : https://doi.nrct.go.th/ListDoi/listDetail?Resolve_DOI=10.14457/TU.the.2010.7