Somsri Vongsilodkul. 2015. Thematic choices and lexical bundles : a comparative study of native and non-native prime ministers' written speeches-The world economic forum (2010-2013). , Kasetsart University;
Somsri Vongsilodkul. (2015) Thematic choices and lexical bundles : a comparative study of native and non-native prime ministers' written speeches-The world economic forum (2010-2013) . Kasetsart University/Bangkok.
Somsri Vongsilodkul. Thematic choices and lexical bundles : a comparative study of native and non-native prime ministers' written speeches-The world economic forum (2010-2013). . Bangkok:Kasetsart University, 2015.
Somsri Vongsilodkul. (2015) Thematic choices and lexical bundles : a comparative study of native and non-native prime ministers' written speeches-The world economic forum (2010-2013) . Kasetsart University/Bangkok.