Hathairat Ongthanawat. 2008. A survey of foreign customer satisfaction with Tip-Top restaurant at Patpong. , Thammasert University; DOI : https://doi.nrct.go.th/ListDoi/listDetail?Resolve_DOI=10.14457/TU.res.2008.104

Hathairat Ongthanawat. A survey of foreign customer satisfaction with Tip-Top restaurant at Patpong. . Bangkok:Thammasert University, 2008. DOI : https://doi.nrct.go.th/ListDoi/listDetail?Resolve_DOI=10.14457/TU.res.2008.104

Hathairat Ongthanawat. (2008) A survey of foreign customer satisfaction with Tip-Top restaurant at Patpong . Thammasert University/Bangkok. DOI : https://doi.nrct.go.th/ListDoi/listDetail?Resolve_DOI=10.14457/TU.res.2008.104