Parameth Lordasa. 2007. A survey study of the role of attitudes and motivation in learning English. Bangkok:Thammasat University; DOI : https://doi.nrct.go.th/ListDoi/listDetail?Resolve_DOI=10.14457/TU.the.2007.238

Parameth Lordasa. A survey study of the role of attitudes and motivation in learning English. Bangkok:Thammasat University, 2007. DOI : https://doi.nrct.go.th/ListDoi/listDetail?Resolve_DOI=10.14457/TU.the.2007.238

Parameth Lordasa. (2007) A survey study of the role of attitudes and motivation in learning English (รายงานผลงานวิจัย). Thammasat University:Bangkok. DOI : https://doi.nrct.go.th/ListDoi/listDetail?Resolve_DOI=10.14457/TU.the.2007.238