Satit Trithipwanich. 2009. Foreign tourists' satisfaction with the personal audio guide (PAG) at the Grand Palace and the Temple of the Emerald Buddha. Bangkok:Thammasat University; DOI : https://doi.nrct.go.th/ListDoi/listDetail?Resolve_DOI=10.14457/TU.the.2009.210
Satit Trithipwanich. (2009) Foreign tourists' satisfaction with the personal audio guide (PAG) at the Grand Palace and the Temple of the Emerald Buddha (รายงานผลงานวิจัย). Thammasat University:Bangkok. DOI : https://doi.nrct.go.th/ListDoi/listDetail?Resolve_DOI=10.14457/TU.the.2009.210
Satit Trithipwanich. Foreign tourists' satisfaction with the personal audio guide (PAG) at the Grand Palace and the Temple of the Emerald Buddha. Bangkok:Thammasat University, 2009. DOI : https://doi.nrct.go.th/ListDoi/listDetail?Resolve_DOI=10.14457/TU.the.2009.210
Satit Trithipwanich. (2009) Foreign tourists' satisfaction with the personal audio guide (PAG) at the Grand Palace and the Temple of the Emerald Buddha (รายงานผลงานวิจัย). Thammasat University:Bangkok. DOI : https://doi.nrct.go.th/ListDoi/listDetail?Resolve_DOI=10.14457/TU.the.2009.210