Lê Trần Hoàng Quyên. (2007). A comparative study of refusals in English and Vietnamese.
Chicago Style aipamenaLê Trần Hoàng Quyên. A Comparative Study of Refusals in English and Vietnamese. 2007.
MLA aipamenaLê Trần Hoàng Quyên. A Comparative Study of Refusals in English and Vietnamese. 2007.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.