Trần Thị Anh Oanh. (2008). TOEFL iBT m-Speaking. TP.HCM.
Chicago Style aipamenaTrần Thị Anh Oanh. TOEFL IBT M-Speaking. TP.HCM, 2008.
MLA aipamenaTrần Thị Anh Oanh. TOEFL IBT M-Speaking. TP.HCM, 2008.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.