Namtan Siriboon. 2008. TOEIC preparation course at Toyota Motor Thailand : the impact of English language development on employees. Bangkok:Thammasat University; DOI : https://doi.nrct.go.th/ListDoi/listDetail?Resolve_DOI=10.14457/TU.res.2008.36

Namtan Siriboon. TOEIC preparation course at Toyota Motor Thailand : the impact of English language development on employees. Bangkok:Thammasat University, 2008. DOI : https://doi.nrct.go.th/ListDoi/listDetail?Resolve_DOI=10.14457/TU.res.2008.36

Namtan Siriboon. (2008) TOEIC preparation course at Toyota Motor Thailand : the impact of English language development on employees (รายงานผลงานวิจัย). Thammasat University:Bangkok. DOI : https://doi.nrct.go.th/ListDoi/listDetail?Resolve_DOI=10.14457/TU.res.2008.36