Smith Wongwiwat. 2008. A study of the needs for English of officers at office of the National Security Council of Thailand (NSC). Bangkok:Thammasat University; DOI : https://doi.nrct.go.th/ListDoi/listDetail?Resolve_DOI=10.14457/TU.the.2008.286

Smith Wongwiwat. A study of the needs for English of officers at office of the National Security Council of Thailand (NSC). Bangkok:Thammasat University, 2008. DOI : https://doi.nrct.go.th/ListDoi/listDetail?Resolve_DOI=10.14457/TU.the.2008.286

Smith Wongwiwat. (2008) A study of the needs for English of officers at office of the National Security Council of Thailand (NSC) (รายงานผลงานวิจัย). Thammasat University:Bangkok. DOI : https://doi.nrct.go.th/ListDoi/listDetail?Resolve_DOI=10.14457/TU.the.2008.286